数学计算题!(3/5)^-³(-1/2)^-4 (x-2y)^-3?
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(3/5)^-³
=(5/3)³
=5³/3³
=125/27
(-1/2)^-4
=(-2)^4
=16
(x-2y)^-3
=1/(x-2y)³,2,
canelylyly 举报
4x²-y²/3x²y÷2x-y x²-4y²/x²+6xy+9y²÷2y²-xy/x²+3xy 还有这两题!谢谢 采纳我,重新问,(3/5)^-³=125/27
(-1/2)^-4 =16
(x-2y)^-3=1/(x^3-6x^2y+12xy^2-8y^3),1,数学计算题!(3/5)^-³(-1/2)^-4 (x-2y)^-3
(3/5)^-³
(-1/2)^-4
(x-2y)^-3
三道,谢谢了
=(5/3)³
=5³/3³
=125/27
(-1/2)^-4
=(-2)^4
=16
(x-2y)^-3
=1/(x-2y)³,2,
canelylyly 举报
4x²-y²/3x²y÷2x-y x²-4y²/x²+6xy+9y²÷2y²-xy/x²+3xy 还有这两题!谢谢 采纳我,重新问,(3/5)^-³=125/27
(-1/2)^-4 =16
(x-2y)^-3=1/(x^3-6x^2y+12xy^2-8y^3),1,数学计算题!(3/5)^-³(-1/2)^-4 (x-2y)^-3
(3/5)^-³
(-1/2)^-4
(x-2y)^-3
三道,谢谢了
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