问题
解答题
(x-y)2n•(y-x)2n-1•(y-x)4n•(x-y)2n+1(n为正整数)
答案
原式=-(x-y)2n•(x-y)2n-1•(x-y)4n•(x-y)2n+1
=-(x-y)2n+2n-1+4n+2n+1
=-(x-y)10n.
(x-y)2n•(y-x)2n-1•(y-x)4n•(x-y)2n+1(n为正整数)
原式=-(x-y)2n•(x-y)2n-1•(x-y)4n•(x-y)2n+1
=-(x-y)2n+2n-1+4n+2n+1
=-(x-y)10n.