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         <title><![CDATA[FUNCTII SPECIALE]]></title>
        <description><![CDATA[&Icirc;n cele de mai jos sunt prezentate c&acirc;teva funcţii deosebite,&nbsp;folosite &icirc;n matematica de liceu, &icirc;nsoţite de&nbsp;definiţiile şi proprietăţile lor esenţiale.]]></description>
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					<title><![CDATA[TEORIE]]></title>
					<description><![CDATA[Functia modul (valoare absoluta): f:R - &gt; [0,+oo), $latex f(x)=|x|=##begin{cases}-x,x##in{(-##infty,0)}####x,x##in{[0,+##infty)}##end{cases}$sau&nbsp; $latex f(x)=|x|=##begin{cases}-x,x##in{(-##infty,0]}####x,x##in{(0,+##infty)}##end{cases}$sau&nbsp;$latex f(x)=|x|=##begin{cases}-x,x##in{(-##i...]]></description>
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					<pubDate>Fri, 13 Mar 2009 16:20:03 +0200</pubDate>
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					<title><![CDATA[EXEMPLUL 1]]></title>
					<description><![CDATA[Suport teoretic:Functia parte intreaga, graficul unei functii, intersectia a doua multimi, sistem de inecuatii de gradul intai.Enunt:Sa se gaseasca intersectia graficelor functiilor urmatoare:f,g:R - &gt; R,$latex f(x)=[##frac{2-x}{4}],##;g(x)=##frac{1}{2}x-##frac{1}{2}.$Raspuns:$latex {G_f}##cap...]]></description>
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					<pubDate>Tue, 24 Aug 2010 21:46:00 +0300</pubDate>
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					<title><![CDATA[EXEMPLUL 2]]></title>
					<description><![CDATA[Suport teoretic:Functiile sgn (semn, signum, signatura),&nbsp;min si&nbsp;max, semnul functiilor sinus, cosinus si tangenta, domeniu de definitie, imaginea unei multimi printr-o functie.Enunt:&nbsp;Fie functia reala f, de variabila reala, data prin legea f(x) = a&middot;sgn(sinx) + b&middot;sgn(c...]]></description>
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					<pubDate>Mon, 08 Nov 2010 20:39:00 +0200</pubDate>
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							<item>
					<title><![CDATA[EXEMPLUL 3]]></title>
					<description><![CDATA[Suport teoretic:Functia parte fractionara, functia parte intreaga, ecuatii transcendente, sistem de inecuatii.Enunt:Sa se rezolve in R ecuatia transcendenta {x + 1} = 1&nbsp;- (1/3)x, unde {a} reprezinta partea fractionara a numarului real a.Raspuns:S = {3/4;3/2;9/4;3}.]]></description>
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					<pubDate>Sun, 30 Oct 2011 12:39:00 +0200</pubDate>
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