Réponses

2012-09-08T12:32:44+02:00

(-2)^3 = (-2) x (-2) x (-2) = -8
(-2)^4 = (-2) x (-2) x (-2) x (-2) = 16
(-10)^3 = (-10) x (-10) x (-10) = -30
(3/4)^2 = (3/4) x (3/4) Donc au numérateur on fait 3x3 et au dénominateur 4x4 et on obtient 9/ 16
(2/3)^3 = (2/3) x (2/3) x  (2/3) = 8/27