Réponses

2014-10-11T16:23:44+02:00


A = 2^ -3 x 7 - (- 5)^2 x 6^ -1

A = 0,125 x 7 - (- 25) x 1/6

A = 7/8 - (- 25/6)

A = 7/8 + 25/6

A = 42/48 + 200/48

A = 242/48

A = 121/24