这几道题怎么做啊
1个回答
2017-02-19
展开全部
(X-Y)^7(Y-X)^5(X-Y)
=-(X-Y)^7(X-Y)^5(X-Y)
=-(X-Y)^13
(0.04)^2015*(25)^2016
=(0.04*25)^2015*25
=25
=-(X-Y)^7(X-Y)^5(X-Y)
=-(X-Y)^13
(0.04)^2015*(25)^2016
=(0.04*25)^2015*25
=25
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