来自廖志杰的问题
数学诱导公式题已知cos(π/6-α)=1/3求COS(5π/6+α)Sin(2π/3-α)
数学诱导公式题
已知cos(π/6-α)=1/3
求COS(5π/6+α)
Sin(2π/3-α)
1回答
2020-12-21 00:33
数学诱导公式题已知cos(π/6-α)=1/3求COS(5π/6+α)Sin(2π/3-α)
数学诱导公式题
已知cos(π/6-α)=1/3
求COS(5π/6+α)
Sin(2π/3-α)
-1/3
and1/3