∵f(X)的定义域为[-1/2,√3/2)
∴-1/2≤sinx<√3/2
∴x∈[2kπ-π/2,2kπ+π/3)∪(2π/3+2kπ,2kπ+7π/6](k∈Z)
∴f(sinx)的定义域为[2kπ-π/2,2kπ+π/3)∪(2π/3+2kπ,2kπ+7π/6](k∈Z)
对不?给分哈.嘿嘿
∵f(X)的定义域为[-1/2,√3/2)
∴-1/2≤sinx<√3/2
∴x∈[2kπ-π/2,2kπ+π/3)∪(2π/3+2kπ,2kπ+7π/6](k∈Z)
∴f(sinx)的定义域为[2kπ-π/2,2kπ+π/3)∪(2π/3+2kπ,2kπ+7π/6](k∈Z)
对不?给分哈.嘿嘿