化简(1)√3sin x+cos x (2)√2(sin x-cos x) (3)√2cos x-√6sin x
化简(1)√3sin x+cos x (2)√2(sin x-cos x) (3)√2cos x-√6sin x
已知向量a=(cosωx-sinωx,sinωx),b=(-cosωx-sinωx,2√ 3cosωx),
化简 1/2cos x-根号3/2sin x 根3sin x+cos x
已知fx=2/√3sin 2x-2/1[cos^x-sin^x]-1
化简[1-(sin^4x-sin^2cos^2x+cos^4x)/(sin^2)]+3sin^2x
已知函数f(x )=sin ^2x +2√3sin x cos x +3cos^x 、求函数f (x )的单调增区间
sin(x/3)cos(x/3)+√3cos^2(x/3) 化成Asin(Ωx+&)的形式
化简y=sin^2(x)+2sin(x)cos(x)+3cos^2(x)
化简2sin^2[(π/4)+x]+根号3(sin^x-cos^x)-1
化简:1、sin(x-π/3)-cos(x+π/6)+√3cosx=?2、已知,sinα+sinβ=√2/2,求cosα
求导f(x) = cos(3x) * cos(2x) + sin(3x) * sin(2x).
高中数学已知函数f(x )=cos^2 x-√3 sin x cosx+2sin^2x-1/2