(-y)2次方乘y的n-1=
问题描述:
(-y)2次方乘y的n-1=
答
=y2次方乘y的n-1
=y的2+n-1次方
=y的n+1次方
(-y)2次方乘y的n-1=
=y2次方乘y的n-1
=y的2+n-1次方
=y的n+1次方