全集U={1,2,3,4,5,6,7,8,9},A∩B={2},CuA∩CuB={1,9},CuA∩B={4,6,8},则A=?

问题描述:

全集U={1,2,3,4,5,6,7,8,9},A∩B={2},CuA∩CuB={1,9},CuA∩B={4,6,8},则A=?

A={2,3,5,7},