命题“若0<x<5,则|x-2|<3”,这个命题与它的逆命题、否命题、逆

命题“若0<x<5,则|x-2|<3”,这个命题与它的逆命题、否命题、逆否命题这四个命题中真命题是(  )

A.原命题、逆命题

B.逆命题、否命题

C.原命题、逆否命题

D.原命题、逆命题、否命题、逆否命题

答案

解析:

由|x-2|<3得-3<x-2<3

∴-1<x<5故0<x<5时,必有-1<x<5即|x-2|<3成立,反之则不成立.故原命题正确,逆命题不正确,从而逆否命题正确,否命题不正确.选C.

答案:

C

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