已知sin(x+π3)=13
已知函数f(x)=2sin(x+π3)
已知sin(x+π6)=14
已知函数f(x)=sin(2x+π3)+sin(2x−π3)+cos2x
已知函数f(x)=3sinπx+cosπx,x∈R.
已知函数f(x)=2sin(13x−π6),x∈R
已知函数f(x)=2sin(13x−π6),x∈R.
已知函数f(x)=sin(x+π6)−cos(x+π3)+cosx,
已知函数f(x)=2sin(2x+π3),x∈R.
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)
已知sin(x+π/6)=1/3,求sin(5π/6-x)+sin^2(π/3-x)