Réponses

2014-10-06T18:48:16+02:00
Bonsoir

7/18 x 2/7 - (5/3 - 1)³

14/126 - (5/3 - 3/3)³

14/126 - (2/3)³

14/126 - 8/27
378/378 - 1008/378
= - 630/3785 = 5/3