题目内容
15.已知全集U={0,1,2,3,4,5,6,7,8},集合A={0,1,3,5,8},集合B={2,4,5,6,8},则(∁UA)∩(∁UB)=( )A. | {5,8} | B. | {7} | C. | {0,1,3} | D. | {2,4,6} |
分析 先求出集合A,B的补集,找出A补集与补集的交集即可.
解答 解:∵全集U={0,1,2,3,4,5,6,7,8},集合A={0,1,3,5,8},集合B={2,4,5,6,8},
∴(∁UA)={2,4,6,7},(∁UB)={0,1,3,7},
∴(∁UA)∩(∁UB)={7},
故选:B.
点评 此题考查了交、并、补集的混合运算,熟练掌握各自的定义是解本题的关键.
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