2015-12-1
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![{\displaystyle f:[-1,1]\to \mathbb {R} }](https://wikimedia.org/api/rest_v1/media/math/render/svg/1bd6b3e94215c6224a6e70a62a912110cbf6a249)
![{\displaystyle [-1,1]}](https://wikimedia.org/api/rest_v1/media/math/render/svg/51e3b7f14a6f70e614728c583409a0b9a8b9de01)
Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \hfill{\\}} Cazul
