题目内容

【题目】已知命题p:x1 , x2∈R,(f(x2)﹣f(x1))(x2﹣x1)≥0,则¬p是( )
A.x1 , x2∈R,(f(x2)﹣f(x1))(x2﹣x1)≤0
B.x1 , x2∈R,(f(x2)﹣f(x1))(x2﹣x1)≤0
C.x1 , x2∈R,(f(x2)﹣f(x1))(x2﹣x1)<0
D.x1 , x2∈R,(f(x2)﹣f(x1))(x2﹣x1)<0

【答案】C
【解析】解:命题p:x1 , x2∈R,(f(x2)﹣f(x1))(x2﹣x1)≥0是一个全称命题,其否定是一个特称命题,
故p:x1 , x2∈R,(f(x2)﹣f(x1))(x2﹣x1)<0.
故选:C.

练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网