已知函数f(x)=(sinx+cosx)^2+2sin(x+4/π)sin(4/π - x)
已知函数f(x)=2cosx*sin(x+π/3)-√3sin^2x+sinx*cosx
已知函数f(x)=(sinx+cosx)^2+2sin(x+4/π)sin(4/π - x)
化简f(x)=4sinx*sin^2((π+2x)/4)+(cosx+sinx)(cosx-sinx)
已知函数f(x)=[(2根号3sin^2x-sin2x)*cosx/sinx]+1
已知函数f(x)=1-根号2sin(2x-π/4)/cosx
高一数学:已知函数f(x)=2cos*sin(x+π/3)-√3sin^2x+sinx*cosx
2sin(x-π/4)sin(x+π/4)=(sinx-cosx)(sinx+cosx)=-cos2a
设f(x)=2cosx.sin(x+π/3)-根号3 sin平方x+sinx.cosx
已知函数f(x)=2cosx*sin(x+π/3)-根号3sin^2x+sinx*cosx
已知函数f(x)=sinx+sin(x+π2),x∈R.
已知向量a=(sin(π/2+x),根号cosx),b=(sinx,cosx)f(x)=a*b
已知函数f(x)=cos^4 x -2sinx *cosx-sin^4 x