Sagot :
bonsoir,
A = 1 /7
B = 8 * 9 = 72
c = 1 /8 : 1 /25 = 1/8 * 25 = 25/8
D = 9 / 16
A = a^14
B = 1 / a ^7
C = a^- 3 / a^ - 4 = a ^ 1
D = ( a^5) ^ 3 = a 15
E = a ^21 / a^ 12 = a ^ 9
F = ( a^-8)^7 = a ^ - 56
bonsoir,
A = 1 /7
B = 8 * 9 = 72
c = 1 /8 : 1 /25 = 1/8 * 25 = 25/8
D = 9 / 16
A = a^14
B = 1 / a ^7
C = a^- 3 / a^ - 4 = a ^ 1
D = ( a^5) ^ 3 = a 15
E = a ^21 / a^ 12 = a ^ 9
F = ( a^-8)^7 = a ^ - 56