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         <title><![CDATA[1) ALGEBRA ELEMENTARA ]]></title>
        <description><![CDATA[Orice ramură o matematicii presupune cunoaşterea aprofundată&nbsp;a calculului elementar cu numere reale şi complexe (reguli, formule, identităţi remarcabile, teoreme). Lista de mai jos conţine informaţiile esenţiale din acest punct de vedere: ]]></description>
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        <pubDate>Mon, 03 May 2010 11:06:12 +0300</pubDate>
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					<title><![CDATA[TEORIE]]></title>
					<description><![CDATA[Identitati&nbsp;remarcabile: $latex ##bf{{({a}##pm{b})^2}={a^2}##pm{2ab}+{b^2}};$ $latex ##bf{{({a}##pm{b})^3}={a^3}##pm{3{a^2}{b}}+3a{b^2}##pm{b^3}};$ $latex ##bf{{a^2-b^2}=(a-b)(a+b)};$ $latex ##bf{{a^3-b^3}=(a-b)(a^2+ab+b^2)};$ $latex ##bf{{a^3+b^3}=(a+b)(a^2-ab+b^2)};$ $latex ##bf{{a}^{n}-{b}...]]></description>
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					<pubDate>Thu, 16 Oct 2008 18:59:37 +0300</pubDate>
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