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Pompot
@Pompot
April 2019
1
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Ah que coucou ! :)) Je n'arrive pas à faire cette équation !
La voici : f(x) = | x+1 | + | x-2 |
Et il faut aussi que je fasse l'algorithme de la valeur absolue !
Qui veut bien m'aider ? Merciii ! :))
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f(x) = | x+1 | + | x-2 |
si x<-1 alors x+1<0 et x-2<0 donc f(x)=-(x+1)-(x-2)=-2x+1
si -1<x<2 alors x+1>0 et x-2<0 donc f(x)=(x+1)-(x-2)=3
si x>2 alors x+1>0 et x-2>0 donc f(x)=(x+1)+(x-2)=2x-1
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si x<-1 alors x+1<0 et x-2<0 donc f(x)=-(x+1)-(x-2)=-2x+1
si -1<x<2 alors x+1>0 et x-2<0 donc f(x)=(x+1)-(x-2)=3
si x>2 alors x+1>0 et x-2>0 donc f(x)=(x+1)+(x-2)=2x-1