已知函数f(x)=sin2xcosb-2cos^2sin(π-b)-cos(π/2+b)(-π/2
已知函数f(x)=cos(2x-π/3)+sin^2 x-cos^2 x
已知函数f(x)=cos(2x-π\3)+sin²x-cos²x
已知函数f(x)=a(cos^2 x+sin xcos x)+b.
已知向量a=(cos(2x-π/3),sin(x-π/4)),向量b=(1,2sin(x π/4)),函数f(x)=向量
已知a向量=(cos(2x-π/3),sin(x-π/4),b向量=(1,2sin(x+π/4)),函数f(x)=a向量
已知函数f(x)=2cos(x+π/3)[sin(x+π/3)-√3cos(x+π/3)]
已知函数f(x)=cos(2x-π/3)+sin(^2)x+cos(^2)x.求化简~
已知向量a=(sin(x+π/6),cosx),b=(cosx,cos(x-π/3)),函数f(x)=向量a·b-1/2
已知向量a=(sin(π/2+x),cos(π-x),向量b=(cosx,sinx),函数f(x)=向量a*向量b 1.
已知函数f(x)=cos(-x/2)+sin(π-x/2),x∈R
已知函数f(x)= [sin(2π-x)sin(π+x)cos(-x-π)] /[2cos(π-x)sin(3π-x)]
已知函数f(x)=cos(2x-π/3)+sin^2x-cos^2x,设函数g(x)=[f(x)]^2+f(x),求g(