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Variation d'un trinôme du second degré 1
Compléter le tableau des variations de la fonction
f
telle que
f
(
x
)
=
10
x
2
+
2
x
−
1
.
Donner les valeurs exactes des coordonnées du sommet de la parabole.
x
−
∞
+
∞
var
f
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Developed on WIMS
Author: Régine, Mangeard;Maguy, Bruno
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