(-3m^-1)-3
--------
2n^2
列式
Maths
2007-09-28 6:28 am
回答 (2)
2007-09-28 3:17 pm
✔ 最佳答案
(-3m^-1)-3--------
2n^2
(-3)^-3m^3
=--------
2n^2
m^3
=--------
(-3)^3(2n^2)
m^3
=--------
(-27)(2n^2)
m^3
=--------
-54n^2
= -m^3n^-2/54
2007-09-28 6:42 am
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