设全集U={1,2,3,4,5,6,7},A={2,4,6},B={2,3,5,7},求CuA,CuB,A∩CuB,B∩

学习 时间:2026-04-02 20:38:33 阅读:8873
设全集U={1,2,3,4,5,6,7},A={2,4,6},B={2,3,5,7},求CuA,CuB,A∩CuB,B∩CuA