Réponse :
Explications étape par étape
Bonjour,
Calculer en simplifiant :
A = (-4/5 x 13/-3) / (-5/4 x 3/-11)
A = [(4 x 13)/(5 x 3)] / [(5 x 3)/(4 x 11)]
A = 52/15 / (15/44)
A = 52/15 x 44/15
A = (52 x 44)/(15 x 15)
A = 2288/225
B = (-3/2 + -6/14) / (-7/6 - (-4/9))
B = (-21/14 - 6/14) / (-21/18 + 8/18)
B = (-27/14) / (-13/18)
B = -27/14 x -18/13
B = (27 x 18)/(14 x 13)
B = 243/91
C = [16/25 x (-20/4)] / -45/32
C = [(16 x -20)/(25 x 4)] / -45/32
C = (4 x -4)/5 x -32/45
C = -16/5 x -32/45
C = 512/225
D = -32/15 / [(-3/16) x 4/5 x 25/16]
D = -32/15 / [(-3 x 4 x 25)/(16 x 5 x 16)]
D = -32/15 / (-3 x 5)/(4 x 16)
D = -32/15 / (-15/64)
D = 32/15 x 64/15
D = 2048/225
