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> 二次根式有意义,则x的取值范围是A.x≠3B.x=3C.x≥3D.x<3-九年级数学
二次根式有意义,则x的取值范围是A.x≠3B.x=3C.x≥3D.x<3-九年级数学
题目简介
二次根式有意义,则x的取值范围是A.x≠3B.x=3C.x≥3D.x<3-九年级数学
题目详情
二次根式
有意义,则x的取值范围是
A.x≠3
B.x=3
C.x≥3
D.x<3
题型:单选题
难度:偏易
来源:不详
答案
C
根据二次根式有意义的条件列出不等式,求出x的取值范围即可.
解:∵二次根式
有意义,
∴x-3≥0,
∴x≥3.
故选C.
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题目简介
二次根式有意义,则x的取值范围是A.x≠3B.x=3C.x≥3D.x<3-九年级数学
题目详情
答案
解:∵二次根式
∴x-3≥0,
∴x≥3.
故选C.