急啊~!请问这道数学题怎么做?

2024-12-29 07:45:24
推荐回答(4个)
回答1:

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

回答2:

回答3:

B∩C={2},
B∩C的补集={1,3,4,5,6,7,8,9,10}
原式=Ω 选D

回答4:

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