问题
选择题
已知:am=7,bn=
|
答案
(-a3mbn)2(amb2n)3
=(am)6(bn)2(am)3(bn)6
=(am)9(bn)8
=79×(
1 |
7 |
=78×(
1 |
7 |
=(7×
1 |
7 |
=7.
故选:C.
已知:am=7,bn=
|
(-a3mbn)2(amb2n)3
=(am)6(bn)2(am)3(bn)6
=(am)9(bn)8
=79×(
1 |
7 |
=78×(
1 |
7 |
=(7×
1 |
7 |
=7.
故选:C.