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Signe d'une expression avec exp (1)
Etudier, en fonction de
x
le signe de l'expression
E
(
x
)
=
(
2
x
−
2
)
e
3
−
4
x
+
(
2
−
x
)
e
3
−
4
x
.
x
−
∞
+
∞
E
(
x
)
choose
-
+
0
choose
-
+
0
choose
-
+
0
Hint
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Abandon
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Developed on WIMS
Author: Véronique, Royer; Chantal, Causse
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