设全集U=R,集合A={x属于R,-5

问题描述:

设全集U=R,集合A={x属于R,-5

数学人气:948 ℃时间:2020-10-02 03:48:19
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(-无穷,-5)u(4,6)u(6,+无穷)
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(-无穷,-5)u(4,6)u(6,+无穷)