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Sagot :

VINS

bonjour,

1 ) f (2) = 1

2 )   f ( - 1) =  - 0.5

3 ) f ( 4 ) = 2

4)  f ( - 2 ) = - 1

5 )   f ( 2 ) = 1  et f ( 0) = 0

donc  f (x) =  1/2 = 0.5 x

f (x) = 0.5 x

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