化简2sin^2[(π/4)+x]+根号3(sin^x-cos^x)-1
化简2sin^2[(π/4)+x]+根号3(sin^x-cos^x)-1
化简 1/2cos x-根号3/2sin x 根3sin x+cos x
化简[1-(sin^4x-sin^2cos^2x+cos^4x)/(sin^2)]+3sin^2x
化简sin(x+π/2)分之1+根号二cos(2x-π/4)
化简:3/2cos x-(根号3)/2sin x
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+
(1-(sin^4x-sin^2xcos^2x+cos^4x)/sin^2x +3sin^2x
sin(x+π/3)+2sin(x-π/3)-根号3cos(2π/3-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^2*x-根号3*sinπ/4*x*cosπ/4*x
sin(5x)-sin(3x)= 根号2cos(4x)
求化简f(x)=sin^2x+2根号3sin(x+π/4)cos(x-π/4)-cos^2x-根号3