已知xn=2,yn=3,则(xy)n=_;(x2y)n=_.
问题描述:
已知xn=2,yn=3,则(xy)n=______;(x2y)n=______.
答
(xy)n=xnyn=2×3=6,
(x2y)n=x2nyn=2×2×3=12.
故填6;12.