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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

Nom :

ABCD est un parallélogramme, I est le milieu de [AB] et K le milieu de [CD].

AK coupe BD en M et CI coupe BD en N.

a. Démontrer que BN=NM=MD (on repérera des configuration de Thalès) b. Quel rôle joue le point N pour le triangle ABC ?

Résoudre l'inéquation 1−2x x –3 1

2009©My Maths Space.

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