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	<id>https://wiki.universitas.ro/index.php?action=history&amp;feed=atom&amp;title=E%3A16890</id>
	<title>E:16890 - Revision history</title>
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	<updated>2026-05-03T07:10:55Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:16890&amp;diff=10773&amp;oldid=prev</id>
		<title>Andrei.Horvat at 05:37, 20 September 2025</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:16890&amp;diff=10773&amp;oldid=prev"/>
		<updated>2025-09-20T05:37:19Z</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;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&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 05:37, 20 September 2025&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-l7&quot;&gt;Line 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&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;Fie &amp;lt;math&amp;gt;N = 2024^n+n^{2024} + 2&amp;lt;/math&amp;gt;.&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;Fie &amp;lt;math&amp;gt;N = 2024^n+n^{2024} + 2&amp;lt;/math&amp;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; 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;Dacă &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt; este un număr par, atunci există numerele naturale nenule &amp;lt;math&amp;gt;t&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;u&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;n^{2024} = 4t&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;2024^n = 4u&amp;lt;/math&amp;gt;. Atunci &amp;lt;math&amp;gt;N = 4t+4u+2 &amp;lt;math&amp;gt;, deci există numărul natural nenul &amp;lt;math&amp;gt;v&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;N=4v+2&amp;lt;/math&amp;gt;, ceea ce implică faptul că &amp;lt;math&amp;gt;N&amp;lt;/math&amp;gt; nu poate fi un pătrat perfect.&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;Dacă &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt; este un număr par, atunci există numerele naturale nenule &amp;lt;math&amp;gt;t&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;u&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;n^{2024} = 4t&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;2024^n = 4u&amp;lt;/math&amp;gt;. Atunci &amp;lt;math&amp;gt;N = 4t+4u+2 &amp;lt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;/&lt;/ins&gt;math&amp;gt;, deci există numărul natural nenul &amp;lt;math&amp;gt;v&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;N=4v+2&amp;lt;/math&amp;gt;, ceea ce implică faptul că &amp;lt;math&amp;gt;N&amp;lt;/math&amp;gt; nu poate fi un pătrat perfect.&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;Dacă &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt; este un număr impar, atunci există numerele naturale nenule &amp;lt;math&amp;gt;p&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;q&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;n^{2024} = 4p+1&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;2024^n = 4q&amp;lt;/math&amp;gt;. Atunci &amp;lt;math&amp;gt;N = 4p+1 + 4q+2&amp;lt;/math&amp;gt;, deci există numărul natural nenul &amp;lt;math&amp;gt;w&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;N=4w+3&amp;lt;/math&amp;gt;, ceea ce implică faptul că &amp;lt;math&amp;gt;N&amp;lt;/math&amp;gt; nu poate fi un pătrat perfect.&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;Dacă &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt; este un număr impar, atunci există numerele naturale nenule &amp;lt;math&amp;gt;p&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;q&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;n^{2024} = 4p+1&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;2024^n = 4q&amp;lt;/math&amp;gt;. Atunci &amp;lt;math&amp;gt;N = 4p+1 + 4q+2&amp;lt;/math&amp;gt;, deci există numărul natural nenul &amp;lt;math&amp;gt;w&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;N=4w+3&amp;lt;/math&amp;gt;, ceea ce implică faptul că &amp;lt;math&amp;gt;N&amp;lt;/math&amp;gt; nu poate fi un pătrat perfect.&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;În concluzie, numărul &amp;lt;math&amp;gt;2024^n+n^{2024} + 2&amp;lt;/math&amp;gt; nu este un pătrat perfect oricare ar fi &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt; un număr natural nenul.&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;În concluzie, numărul &amp;lt;math&amp;gt;2024^n+n^{2024} + 2&amp;lt;/math&amp;gt; nu este un pătrat perfect oricare ar fi &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt; un număr natural nenul.&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=E:16890&amp;diff=10772&amp;oldid=prev</id>
		<title>Andrei.Horvat: Created page with &quot;&#039;&#039;&#039;E:16890 (Bogdan Zetea, Călin Hossu)&#039;&#039;&#039;  &#039;&#039;Demonstrați că, pentru orice număr natural nenul &lt;math&gt;n&lt;/math&gt;, numărul &lt;math&gt;2024^n+n^{2024} + 2&lt;/math&gt; nu este un pătrat perfect.&#039;&#039;  &#039;&#039;&#039;Soluție&#039;&#039;&#039;  Fie &lt;math&gt;N = 2024^n+n^{2024} + 2&lt;/math&gt;.  Dacă &lt;math&gt;n&lt;/math&gt; este un număr par, atunci există numerele naturale nenule &lt;math&gt;t&lt;/math&gt; și &lt;math&gt;u&lt;/math&gt; pentru care &lt;math&gt;n^{2024} = 4t&lt;/math&gt; și &lt;math&gt;2024^n = 4u&lt;/math&gt;. Atunci &lt;math&gt;N = 4t+4u+2 &lt;math&gt;, deci exi...&quot;</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:16890&amp;diff=10772&amp;oldid=prev"/>
		<updated>2025-09-20T05:36:12Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&amp;#039;&amp;#039;&amp;#039;&lt;a href=&quot;/wiki/E:16890&quot; title=&quot;E:16890&quot;&gt;E:16890&lt;/a&gt; (Bogdan Zetea, Călin Hossu)&amp;#039;&amp;#039;&amp;#039;  &amp;#039;&amp;#039;Demonstrați că, pentru orice număr natural nenul &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt;, numărul &amp;lt;math&amp;gt;2024^n+n^{2024} + 2&amp;lt;/math&amp;gt; nu este un pătrat perfect.&amp;#039;&amp;#039;  &amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;  Fie &amp;lt;math&amp;gt;N = 2024^n+n^{2024} + 2&amp;lt;/math&amp;gt;.  Dacă &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt; este un număr par, atunci există numerele naturale nenule &amp;lt;math&amp;gt;t&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;u&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;n^{2024} = 4t&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;2024^n = 4u&amp;lt;/math&amp;gt;. Atunci &amp;lt;math&amp;gt;N = 4t+4u+2 &amp;lt;math&amp;gt;, deci exi...&amp;quot;&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;[[E:16890]] (Bogdan Zetea, Călin Hossu)&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;Demonstrați că, pentru orice număr natural nenul &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt;, numărul &amp;lt;math&amp;gt;2024^n+n^{2024} + 2&amp;lt;/math&amp;gt; nu este un pătrat perfect.&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
Fie &amp;lt;math&amp;gt;N = 2024^n+n^{2024} + 2&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
Dacă &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt; este un număr par, atunci există numerele naturale nenule &amp;lt;math&amp;gt;t&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;u&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;n^{2024} = 4t&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;2024^n = 4u&amp;lt;/math&amp;gt;. Atunci &amp;lt;math&amp;gt;N = 4t+4u+2 &amp;lt;math&amp;gt;, deci există numărul natural nenul &amp;lt;math&amp;gt;v&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;N=4v+2&amp;lt;/math&amp;gt;, ceea ce implică faptul că &amp;lt;math&amp;gt;N&amp;lt;/math&amp;gt; nu poate fi un pătrat perfect.&lt;br /&gt;
&lt;br /&gt;
Dacă &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt; este un număr impar, atunci există numerele naturale nenule &amp;lt;math&amp;gt;p&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;q&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;n^{2024} = 4p+1&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;2024^n = 4q&amp;lt;/math&amp;gt;. Atunci &amp;lt;math&amp;gt;N = 4p+1 + 4q+2&amp;lt;/math&amp;gt;, deci există numărul natural nenul &amp;lt;math&amp;gt;w&amp;lt;/math&amp;gt; pentru care &amp;lt;math&amp;gt;N=4w+3&amp;lt;/math&amp;gt;, ceea ce implică faptul că &amp;lt;math&amp;gt;N&amp;lt;/math&amp;gt; nu poate fi un pătrat perfect.&lt;br /&gt;
&lt;br /&gt;
În concluzie, numărul &amp;lt;math&amp;gt;2024^n+n^{2024} + 2&amp;lt;/math&amp;gt; nu este un pătrat perfect oricare ar fi &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt; un număr natural nenul.&lt;/div&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
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