化简 1/2cos x-根号3/2sin x 根3sin x+cos x
化简 1/2cos x-根号3/2sin x 根3sin x+cos x
化简2sin^2[(π/4)+x]+根号3(sin^x-cos^x)-1
化简:3/2cos x-(根号3)/2sin x
化简[1-(sin^4x-sin^2cos^2x+cos^4x)/(sin^2)]+3sin^2x
根号3sin x+cos x要化简
化简y=sin^2(x)+2sin(x)cos(x)+3cos^2(x)
化简(1)√3sin x+cos x (2)√2(sin x-cos x) (3)√2cos x-√6sin x
已知函数f(x)=sin平方+根号3 sin x cos x+2cos平方x,x∈R
已知sin X+cos X=m,|m|小于等于根号2且|m|不等于1,求sin X^3+cos X^3,sin X^4+
求导f(x) = cos(3x) * cos(2x) + sin(3x) * sin(2x).
sin(x+派/3)+2sin(x-派/3)-根号3cos(2派/3-x)
sin(x+π/3)+2sin(x-π/3)-根号3cos(2π/3-x)