已知命題p:∀x1,x2∈R,(f(x2)-f(x1))(x2-x1)≥0,則非p是( )A.∃x1,x2∈...
問題詳情:已知命題p:∀x1,x2∈R,(f(x2)-f(x1))(x2-x1)≥0,則非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...