定义域是
答：y=√[sin(cosx)]定义域满足：sin(cosx)>=00<=cosx<=12kπ-π/2<=x<=2kπ+π/2所以定义域为：[2kπ-π/2，2kπ+π/2]，k∈Z
函数y=根号下(sin(cosx))的定义域[-π/2+2kπ,2kπ+π/2] (k∈z)
[-二分之派，二分之派]
[2kπ-π/2,2kπ+π/2](k∈Z)
