已知命題p:x1,x2∈R,(f(x2)-f(x1))(x2-x1)≥0,則p是( )A.x1,x2∈R,(...
問題詳情:已知命題p:x1,x2∈R,(f(x2)-f(x1))(x2-x1)≥0,則p是()A.x1,x2∈R,(f(x2)-f(x1))(x2-x1)≤0B.x1,x2∈R,(f(x2)-f(x1))(x2-x1)≤0C.x1,x2∈R,(f(x2)-f(x1))(x2-x1)<0D.x1,x2∈R,(f(x2)-f(x1))(x2-x1)<0【回答】C知識點:常用邏輯用語題型:選擇...