请化简(x+y)的6n次方,/(-x-y)的2n+1次方.(n是正整数)
问题描述:
请化简(x+y)的6n次方,/(-x-y)的2n+1次方.(n是正整数)
答
(x+y)^(6n) / (-x-y)^(2n+1)
=(x+y)^(6n) / {-(x+y)^(2n+1)}
=-(x+y)^{6n-(2n+1)}
=-(x+y)^(4n-1)