已知函数f(x)=1,x≤01x,x>0，则使方程x+f(x)=m有解的实数m的取值范围是（）_刷题宝

题干

已知函数f(x)=1,x≤0

1

x

,x>0，则使方程x+f(x)=m有解的实数m的取值范围是（）

A： $(1, 2)$

B： $(- \infty, 1 \cup 2, + \infty)$

C： $(- \infty, 1) \cup (2, + \infty)$

D： $(- \infty, - 2$

上一题下一题 0.0难度选择题更新时间:2018-04-19 08:00:24

答案(点此获取答案解析）

B

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