a. 3*4=12
b. 3*-7= -21
c. 3*1sur3 = 0.99...
d. 3*-5sur12 = -1.2500001
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f(x) = 3x
f(4) = 3 * 4 = 12
f(-7) = 3 * (-7) = -21
f(1/3) = 3 * 1/3 = 3/3 = 1
f(-5/12) = 3 * (-5/12) = -15/12 = -5/4
Bonne soirée !
a. 3*4=12
b. 3*-7= -21
c. 3*1sur3 = 0.99...
d. 3*-5sur12 = -1.2500001