cos(arcsin(-1/2))的值

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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(

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】