问题 选择题
若函数f(x)的定义域是[-1,0],则函数f(sinx)的定义域是(  )
A.[-1,0]B.[2kπ-
π
2
,2kπ],k∈Z
C.[(2k-1)π,2kπ],k∈ZD.[2kπ,2kπ+π],k∈Z
答案

∵函数f(x)的定义域是[-1,0],∴-1≤sinx≤0,∴2kπ-π≤x≤2kπ(k∈Z)

故选C.

名词解释
完形填空
完形填空。    
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