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		Variations d'une fonction numérique
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						Signe de la dérivée, tableau de variations et représentation graphique d'une fonction numérique
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							&#160;&#160;&#160;ressource&#160;67
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		Entrez l'expression algébrique de la fonction <em>f</em> que vous souhaitez étudier.
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		<em>f</em>(<em>x</em>) = 
		
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