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第1讲集合(时间:45分钟)1.[2025·全国二卷]已知集合A={-4,0,1,2,8},B={x|x3=x},则A∩B=()A.{0,1,2}B.{1,2,8}C.{2,8}D.{0,1}2.[2025·全国一... 2026-05-1755824.98 KB3页98
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第一单元预备知识第1讲集合1.D[解析]B={x|x(x-1)(x+1)=0}={0,-1,1},则A∩B={0,1}.2.C[解析]因为U={1,2,3,4,5,6,7,8},A={1,3,5},所以∁UA={2... 2026-05-1760425.55 KB3页300
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