y=2sin(x-π/4)cos(x+π/4)+1
MATLAB画图,y=sin(x)*(cos(x)-1)/((2*sin(x.^2)+4*cos(x)).^0.5)-(
y=sin(-3x) =-sin3x y=cos(3x+π\4) =cos(π/2+3x-π/4) =-sin(3x-π
1.y=cos^4x+sin^4x 求周期 2.y=(sin2x+sin(2x+π/3))/( cos2x+cos(2x
设f(x)=4cos(ωx-π/6)sinωx-cos(2ωx+π),其中ω>0,(1)求函数y=f
y=sin(2x-π/4)+cos(3x+π/3)的导数
求函数y=sin^4x+cos^4x,x(0,π/6)的最小值
函数f(x)=-√2(sin2x+π/4)+6 sin x cos x-2cos²x+1
已知函数f(x)=(1+1/tanx)sin(x)^2 -2sin(x+π/4)*cos(x+π/4)
求证(cos^2 x-sin^2 x)(cos^4 x+sin^4 x)+1/4 sin 2x sin 4x=cos 2
y=sin^2x-3sinxcosx+4cos^2x是否等于y=sin^2x+cos^2x+3cos^2x-3/2*si
化简2sin^2[(π/4)+x]+根号3(sin^x-cos^x)-1
Sin x-sin y=2/3 cos x-cos y=1/2 求cos(x-y)