已经集合U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5},则(∁UA)∪(∁UB)=______.
题型:填空题难度:一般来源:不详
已经集合U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5},则(∁UA)∪(∁UB)=______. |
答案
∵∁UA=U-A={1,2,3,4,5,6,7}-{2,4,5,7}={1,3,6,7} ∁UB=U-B={1,2,3,4,5,6,7}-{3,4,5}={1,2,6,7} ∴(∁UA)∪(∁UB)={1,2,3,6,7} 故答案为{1,2,3,6,7} |
举一反三
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