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