Bonjour,
Calculer:
(1/3)³= (1/3)(1/3)(1/3)= (1x1x1/3x3x3)= 1/27
(3/4)²= (3/4)(3/4)= (3x3/4x4)= 9/16
(-2/3)²= (-2/3)(-2/3)= (-2x-2)/(3x3)= 4/9
