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F I C H E de T r a v a i l p e r s o n n e l 4

Nom :

f est la fonction définie sur la courbe ci- contre sur [–4 ; 4]. Résoudre graphiquement:

fx=1 ; fx0 ; fx–1 ; fx–3 ; fx=0 .

Étudier le signe du quotient 9–4x 11–5x . En déduire les solutions de l'inéquation : 9–4x

11–5x0

2009©My Maths Space.

1.

2.

0,5

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