(x-y)【(y-x)】乘以【(x-y)】的3n次等于多少拜托加加油帮帮忙!
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(x-y)【(y-x)】乘以【(x-y)】的3n次等于多少拜托加加油帮帮忙!
(x-y)【(y-x)】乘以【(x-y)】的3n次等于多少
拜托加加油帮帮忙!
(x-y)【(y-x)】乘以【(x-y)】的3n次等于多少拜托加加油帮帮忙!
n 为奇数时
原式=-(x+y)的(6n+1)次方
n为偶数时
原式=(x+y)的(6n+1)次方
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