Bonjour,
Ex. 69 :
a) affirmation 1 fausse car f(2)=-1
affirmation 2 vraie car f(11)=(11-1)(2×11-5)=170
b) =(B1-1)*(2*B1-5)
c) 1
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Bonjour,
Ex. 69 :
a) affirmation 1 fausse car f(2)=-1
affirmation 2 vraie car f(11)=(11-1)(2×11-5)=170
b) =(B1-1)*(2*B1-5)
c) 1