有關Txx的精選大全

已知*S={1,2},*T={x|(x-1)(x-3)=0},那麼S∪T=A.Æ             ...
問題詳情:已知*S={1,2},*T={x|(x-1)(x-3)=0},那麼S∪T=A.Æ                          B.{1}C.{1,2}                          D.{1,2,3}【回答】D知識點:*與函數的概念題...
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