cos(arcsin(-1/2))的值

cos(arcsin(-1/2))的值
cos(arcsin(-1/2))的值

cos(arcsin(-1/2))的值
因为arcsinx∈[-π/2,π/2]
所arcsin(-1/2)=-π/6
故cos(arcsin(-1/2))=cos(-π/6)=√3/2
答案：√3/2【2分之根号3】