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12345678910111213142.(2024·全国甲,理2)已知集合A={1,2,3,4,5,9},B={x | ∈A},则∁A(A∩B)=( )A.{1,4,9} B.{3,4,9} C.{1,2,3} D.{2,3,5}D解析 因为A={1,2,3,4,5,9},B={x| ∈A},所以B={1,4,9,16,25,81},则A∩B={1,4,9},即∁A(A∩B)={2,3,5}.12345678910111213143.(2024·广东潮州模拟)设x>0,则...
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