若0≦α≦π,函数f(x)=2sin(x+α)cos(x+α)-2√sinx
已知函数f(x)=sinx,x∈[-π\2,π\2],若f(sinα)+f(cosα-1\2)=0,则sinα×cosα
若函数f(x)=sin(x+α)-2cos(x-α)是奇函数,则sinαcosα=
已知函数f(x)=sinx+cosx求f(0)的值,若f(x)=0,求sin(A-x)+5cos(2A-x)/sin(3
已知函数f(x)=sin(2x+α)+根号3cos(2x+α)(0
若函数f(x)=(√3+√3cos2x)/(2sin(π/2-x))-2a(sinx/2)cos(π-x/2) (a>0
已知f(x) =sin^2 x +2sinx cos x + 3 cos^2 x ,x∈(0 ,π) .
已知函数f(x)=sin(π2+x)cos(−x)+4sinx2cos3x2−sinx,
已知函数f(x)=[cos(x/2)]^2-[sin(x/2)]^2+sinx
已知函数F(X)=cos^2(x/2)-sin^2(x/2)+sinx
已知函数f(x)=cos^4 x -2sinx *cosx-sin^4 x
已知函数f(x)=cos(x/2)^2-sin(x/2)^2+sinx,问:函数f(x)的最小正周期.当x0属于(0,π
f(x)=2cos*sin(x+π/3)-^3sin^2x+sinx*cosx