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	<id>https://wiki.universitas.ro/index.php?action=history&amp;feed=atom&amp;title=S%3AE15.239</id>
	<title>S:E15.239 - Revision history</title>
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	<updated>2026-05-01T14:22:07Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.universitas.ro/index.php?title=S:E15.239&amp;diff=9173&amp;oldid=prev</id>
		<title>Andrei.Horvat at 11:56, 7 January 2024</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=S:E15.239&amp;diff=9173&amp;oldid=prev"/>
		<updated>2024-01-07T11:56:57Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:56, 7 January 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;S:E15.239 (Andrei Horvat-Marc)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;S:E15.239 (Andrei Horvat-Marc)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;Într-un triunghi dreptunghic se notează cu &amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;c&amp;lt;/math&amp;gt; lungimile catetelor, cu &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;y&amp;lt;/math&amp;gt; lungimile proiecțiilor catetelor pe ipotenuză, iar cu &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt; lungimea înălțimii corespunzătoare ipotenuzei.&#039;&#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;Într-un triunghi dreptunghic se notează cu &amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;c&amp;lt;/math&amp;gt; lungimile catetelor&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, cu&#039;&#039; &amp;lt;math&amp;gt;a&amp;lt;/math&amp;gt; &#039;&#039;lungimea ipotenuzei&lt;/ins&gt;, cu &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;y&amp;lt;/math&amp;gt; lungimile proiecțiilor catetelor pe ipotenuză, iar cu &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt; lungimea înălțimii corespunzătoare ipotenuzei.&#039;&#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;a) &amp;#039;&amp;#039;Pentru &amp;lt;math&amp;gt;b=20&amp;lt;/math&amp;gt; cm și &amp;lt;math&amp;gt;c=15&amp;lt;/math&amp;gt; cm, calculați &amp;lt;math&amp;gt;a&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;y&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt;.&amp;#039;&amp;#039;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;a) &amp;#039;&amp;#039;Pentru &amp;lt;math&amp;gt;b=20&amp;lt;/math&amp;gt; cm și &amp;lt;math&amp;gt;c=15&amp;lt;/math&amp;gt; cm, calculați &amp;lt;math&amp;gt;a&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;y&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt;.&amp;#039;&amp;#039;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l8&quot;&gt;Line 8:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție.&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție.&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a) În triunghiul dreptunghic cu catetele &amp;lt;math&amp;gt;b=20&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;c=15&amp;lt;/math&amp;gt; avem ipotenuza &amp;lt;math&amp;gt;a = 25&amp;lt;/math&amp;gt;, lungimile proiecțiilor catetelor pe ipotenuză sunt &amp;lt;math&amp;gt;x=16&amp;lt;/math&amp;gt;, respectiv &amp;lt;math&amp;gt;y=9&amp;lt;/math&amp;gt;, iar lungimea înălțimii corespunzătoare ipotenuzei este &amp;lt;math&amp;gt;h=12&amp;lt;/math&amp;gt;, deci în acest triunghi toate valorile &amp;lt;math&amp;gt;a&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;c&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;y&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt; sunt numere naturale. &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;b) Pentru orice &amp;lt;math&amp;gt;k\in \mathbb{N}&amp;lt;/math&amp;gt;, triunghiul dreptunghic cu catetele &amp;lt;math&amp;gt;b=20k&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;c=15k&amp;lt;/math&amp;gt;, are lungimea ipotenuzei &amp;lt;math&amp;gt;a = 25k&amp;lt;/math&amp;gt;, lungimile proiecțiilor pe ipotenuză date de &amp;lt;math&amp;gt;x=16k&amp;lt;/math&amp;gt;, respectiv &amp;lt;math&amp;gt;y=9k&amp;lt;/math&amp;gt;, iar lungimea înălțimii corespunzătoare ipotenuzei este &amp;lt;math&amp;gt;h=12k&amp;lt;/math&amp;gt;, deci în acest triunghi toate valorile &amp;lt;math&amp;gt;a&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;c&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;y&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt; sunt numere naturale. În concluzie, există o infinitate de astfel de triunghiuri.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=S:E15.239&amp;diff=9172&amp;oldid=prev</id>
		<title>Andrei.Horvat at 11:47, 7 January 2024</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=S:E15.239&amp;diff=9172&amp;oldid=prev"/>
		<updated>2024-01-07T11:47:31Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:47, 7 January 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;S:E15.239 (Andrei Horvat-Marc)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;S:E15.239 (Andrei Horvat-Marc)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;Într-un triunghi dreptunghic se notează cu&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039; &lt;/del&gt;&amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt; &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/del&gt;și &amp;lt;math&amp;gt;c&amp;lt;/math&amp;gt; lungimile catetelor, cu &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;y&amp;lt;math&amp;gt; lungimile proiecțiilor catetelor pe ipotenuză, iar cu &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt; lungimea înălțimii corespunzătoare ipotenuzei.&#039;&#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;Într-un triunghi dreptunghic se notează cu &amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;c&amp;lt;/math&amp;gt; lungimile catetelor, cu &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;y&amp;lt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;/&lt;/ins&gt;math&amp;gt; lungimile proiecțiilor catetelor pe ipotenuză, iar cu &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt; lungimea înălțimii corespunzătoare ipotenuzei.&#039;&#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;a) &amp;#039;&amp;#039;Pentru &amp;lt;math&amp;gt;b=20&amp;lt;/math&amp;gt; cm și &amp;lt;math&amp;gt;c=15&amp;lt;/math&amp;gt; cm, calculați &amp;lt;math&amp;gt;a&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;y&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt;.&amp;#039;&amp;#039;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;a) &amp;#039;&amp;#039;Pentru &amp;lt;math&amp;gt;b=20&amp;lt;/math&amp;gt; cm și &amp;lt;math&amp;gt;c=15&amp;lt;/math&amp;gt; cm, calculați &amp;lt;math&amp;gt;a&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;y&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt;.&amp;#039;&amp;#039;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;b) Arătați că există o infinitate de triunghiuri dreptunghice pentru care toate valorile &amp;lt;math&amp;gt;a&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;c&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;y&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt; sunt numere naturale.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;b) &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;Arătați că există o infinitate de triunghiuri dreptunghice pentru care toate valorile &amp;lt;math&amp;gt;a&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;c&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;y&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt; sunt numere naturale.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție.&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție.&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=S:E15.239&amp;diff=9171&amp;oldid=prev</id>
		<title>Andrei.Horvat at 11:46, 7 January 2024</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=S:E15.239&amp;diff=9171&amp;oldid=prev"/>
		<updated>2024-01-07T11:46:24Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:46, 7 January 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;S:E15.239 (Andrei Horvat-Marc)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;S:E15.239 (Andrei Horvat-Marc)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;Într-un triunghi dreptunghic se notează cu&#039;&#039; &amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt; &#039;&#039;și &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;c&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;lungimile catetelor, cu &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;x&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;și &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;y&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;lungimile proiecțiilor catetelor pe ipotenuză, iar cu &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;h&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;lungimea înălțimii corespunzătoare ipotenuzei.&#039;&#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;Într-un triunghi dreptunghic se notează cu&#039;&#039; &amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt; &#039;&#039;și &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;c&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;lungimile catetelor, cu &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;x&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;și &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;y&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt; &lt;/ins&gt;lungimile proiecțiilor catetelor pe ipotenuză, iar cu &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;h&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;lungimea înălțimii corespunzătoare ipotenuzei.&#039;&#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;a) &#039;&#039;Pentru&#039;&#039;  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;a) &#039;&#039;Pentru &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;b=20&amp;lt;/math&amp;gt; cm și &amp;lt;math&amp;gt;c=15&amp;lt;/math&amp;gt; cm, calculați &amp;lt;math&amp;gt;a&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;y&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;h&amp;lt;/math&amp;gt;.&lt;/ins&gt;&#039;&#039;  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;b) Arătați că există o infinitate de triunghiuri dreptunghice pentru care toate valorile &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;b&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;c&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;x&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;y&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;și &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;h&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;sunt numere naturale.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;b) Arătați că există o infinitate de triunghiuri dreptunghice pentru care toate valorile &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;a&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;&lt;/ins&gt;b&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt;&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;c&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt;&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;x&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt;&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;y&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;și &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;h&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;sunt numere naturale.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție.&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție.&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=S:E15.239&amp;diff=9170&amp;oldid=prev</id>
		<title>Andrei.Horvat: Pagină nouă: &#039;&#039;&#039;S:E15.239 (Andrei Horvat-Marc)&#039;&#039;&#039;  &#039;&#039;Într-un triunghi dreptunghic se notează cu&#039;&#039; &lt;math&gt;b&lt;/math&gt; &#039;&#039;și $c$ lungimile catetelor, cu $x$ și $y$ lungimile proiecțiilor catetelor pe ipotenuză, iar cu $h$ lungimea înălțimii corespunzătoare ipotenuzei.&#039;&#039;  a) &#039;&#039;Pentru&#039;&#039;   b) Arătați că există o infinitate de triunghiuri dreptunghice pentru care toate valorile $b$, $c$, $x$, $y$ și $h$ sunt numere naturale.  &#039;&#039;&#039;Soluție.&#039;&#039;&#039;</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=S:E15.239&amp;diff=9170&amp;oldid=prev"/>
		<updated>2024-01-07T11:43:16Z</updated>

		<summary type="html">&lt;p&gt;Pagină nouă: &amp;#039;&amp;#039;&amp;#039;S:E15.239 (Andrei Horvat-Marc)&amp;#039;&amp;#039;&amp;#039;  &amp;#039;&amp;#039;Într-un triunghi dreptunghic se notează cu&amp;#039;&amp;#039; &amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt; &amp;#039;&amp;#039;și $c$ lungimile catetelor, cu $x$ și $y$ lungimile proiecțiilor catetelor pe ipotenuză, iar cu $h$ lungimea înălțimii corespunzătoare ipotenuzei.&amp;#039;&amp;#039;  a) &amp;#039;&amp;#039;Pentru&amp;#039;&amp;#039;   b) Arătați că există o infinitate de triunghiuri dreptunghice pentru care toate valorile $b$, $c$, $x$, $y$ și $h$ sunt numere naturale.  &amp;#039;&amp;#039;&amp;#039;Soluție.&amp;#039;&amp;#039;&amp;#039;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;S:E15.239 (Andrei Horvat-Marc)&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
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&amp;#039;&amp;#039;Într-un triunghi dreptunghic se notează cu&amp;#039;&amp;#039; &amp;lt;math&amp;gt;b&amp;lt;/math&amp;gt; &amp;#039;&amp;#039;și $c$ lungimile catetelor, cu $x$ și $y$ lungimile proiecțiilor catetelor pe ipotenuză, iar cu $h$ lungimea înălțimii corespunzătoare ipotenuzei.&amp;#039;&amp;#039;&lt;br /&gt;
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a) &amp;#039;&amp;#039;Pentru&amp;#039;&amp;#039; &lt;br /&gt;
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b) Arătați că există o infinitate de triunghiuri dreptunghice pentru care toate valorile $b$, $c$, $x$, $y$ și $h$ sunt numere naturale.&lt;br /&gt;
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&amp;#039;&amp;#039;&amp;#039;Soluție.&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
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