函数y=cos(x+π/2)+sin(π/3-x)化简
函数y=cos(x+π/2)+sin(π/3-x)化简
函数y=cos^2(3x+π/6)-sin^2(3x+π/6)化简
函数y=根号3/2sin(x+π/2)+cos(π/6-x)的最大值
已知函数 y=sin(2x-(π/3))+cos(2x-(π/6))+2cos²x-1,x∈R
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
函数y=【cos(3x+π/4)-sin(3x+π/4)】/[cos(3x+π/4)+sin(3x+π/4)]的定义域,
求函数y=sin^2(x+π/6)+cos^2(x+π/3)的最大值和最小值?
化简y=sin^2(x)+2sin(x)cos(x)+3cos^2(x)
若x属于(0,π/4),求函数y=cos^2x-sin^x+2sinxcosx的值域
已知函数f(x)= [sin(2π-x)sin(π+x)cos(-x-π)] /[2cos(π-x)sin(3π-x)]
1.y=cos^4x+sin^4x 求周期 2.y=(sin2x+sin(2x+π/3))/( cos2x+cos(2x