问题
解答题
求下列各式的值: (1)(-3)3 (2)(-
(3)(-1
(4)-(-0.3)3 |
答案
(1)(-3)3=(-3)×(-3)×(-3)=-27,
(2)(-
)3=(-1 2
)×(-1 2
)×(-1 2
)=-1 2
,1 8
(3)原式=(-
)3=(-3 2
)×(-3 2
)×(-3 2
)=-3 2
,27 8
(4)原式=-(-0.3)×(-0.3)×(-0.3)=0.027.