已知X的N次方=5,Y的N次方=3,则(XY)的2N次方等于多少

2025-12-14 23:22:01
推荐回答(1个)
回答1:

(XY)^2n
=x^2n*y^2n
=(x^n)^2*(y^n)^2
=25*9
=225