已知全集U={1,2,3,4,5,6,7,8},M={1,3,5,7},N={5,6,7},则(u(M∪N)=
问题描述:
已知全集U={1,2,3,4,5,6,7,8},M={1,3,5,7},N={5,6,7},则(u(M∪N)=
答
已知全集U={1,2,3,4,5,6,7,8},M={1,3,5,7},N={5,6,7},则(u(M∪N)=