符号打不出来自己打吧。应该先算“(B交C)”={2},“(B交C)的补集”={1,3,4,5,6,7,8,9,10},A并{1,3,4,5,6,7,8,9,10}={1,2,,3,4,5,6,7,8,9,10}=欧姆,也就是选D
B∩C={2},B∩C的补集={1,3,4,5,6,7,8,9,10}原式=Ω 选D
B交C={2}(B交C)的补={1,3,4,5,6,7,8,9,10}AU(B交C)的补={1,2,3,4,5,6,7,8,9,10}选D