如题所述
第1个回答 推荐于2021-02-16
本回答被提问者采纳
第2个回答 2014-03-24
第3个回答 2014-03-24
1、(-9)^5×(-2/3)^5×(1/3)^5
=9^5×(2/3)^5×(1/3)^5
=(3×3)^5×(2/3)^5×(1/3)^5
=3^5×3^5×(2/3)^5×(1/3)^5
=2^5×1^5=32
2、8^12×0.125
=8^12×(1/8)^13
=8^12×(1/8)^12×(1/8)
=1/8
=9^5×(2/3)^5×(1/3)^5
=(3×3)^5×(2/3)^5×(1/3)^5
=3^5×3^5×(2/3)^5×(1/3)^5
=2^5×1^5=32
2、8^12×0.125
=8^12×(1/8)^13
=8^12×(1/8)^12×(1/8)
=1/8
