已知sin(π/6+x)=3/5,π/3
已知sin(x+π/6)=1/3,求sin(5π/6-x)+sin^2(π/3-x)
已知sin(x+π/6)=-3/5,求sin²(π/3-x)-sin(5π/6-x)的值
已知sinα(x+π/6)=1/4,则sin(5π/6-x)+sin(π/3-x)的平方=?
已知sin(π/3-x)=-1/5,且0
已知函数f(x)=2cos(x-π/6)sin(x+π/6)-√3*(sin(x-π/6))^2+sin(x-π/6)c
已知函数f(x)=cos(2x-π/3)+2sin(x-π/4)sin(x+π/4)=sin(2x-π/6) ,
已知sinα是方程5x²-7x-6=0的根,求[sin(-α+3π/2)sin(π-α)tan²(2
已知函数f(x)=2sin(ax-π/6)sin(ax+π/3)
已知sin(x+π/6)=0.25,则sin(5π/6-x)+sin(π/3-x)*sin(π/3-x)的值为多少
高中数学:已知函数f(x)=2sin(x+π/2).sin(x+7π/3)-
已知函数f(x)=2√3sin²x-sin(2x-π/3)
已知函数f(x)=2根号3sin平方x-sin(2x-π/3)