cos^2x/sin( π/4+x)cos(x+π/4),求① f(5π/12)
cos^2x/sin( π/4+x)cos(x+π/4),求① f(5π/12)
已知f(x)=cos^2x/1+sin^2x求f'(π/4)
已知函数f(x)=[6cos(π+x)+5sin^(π-x)-4]/cos(2π-x),且f(m)=2,求f(-m)的值
函数f(x)=-√2(sin2x+π/4)+6 sin x cos x-2cos²x+1
求函数f(x)=sin(π/3+4x)+cos(4x-π/6
设f(x)=4cos(ωx-π/6)sinωx-cos(2ωx+π),其中ω>0,(1)求函数y=f
化简sin(3π-x)cos(x-3/2)cos(4π-x)/tan(x-5π)cos(π/2+x)sin(x-5/2π
三角函数已知P(-4,3) 求(cos((π/2)+x)sin(-π-x))/(cos((11π/2)-x)sin((9
已知f(x)=cos^2x+sinxcosx g(x)=2sin(x+π/4)sin(x-π/4)
已知函数f(x)=2√3sin(x+π/4)cos(x+π/4)-sin(2x+π).求f(x)的最小正周期
已知函数f(x)=cos(2x-π/3)+2sin(x-π/4)sin(x+π/4) 求函数f(x
x∈[π/4,π/3],f(x)=1/2sin(x-5π/12)cos(5π/12-x)+[(根号3)/2][sin(x