已知函数f(x)=2sin(2x-π/4)+2√2cos2x 若tanx=-1/3,1.若tanx=-1/3,且x∈(π
已知函数f(x)=(1+1/tanx)sin(x)^2 -2sin(x+π/4)*cos(x+π/4)
已知x∈R,f(x)=(1/2)sin^2 x(1/tan(x/2)-tanx/2)+√3/2cos2x.
已知函数f(x)=(1+1/tanx)sin2x-2sin(x+π/4)sin(x-π/4)
已知x∈R,f(x)=1/2sin^2x[1/tan(x/2)-tanx/2)+根号3/2cos2x
函数f(x)=(1+1/tanx)sin^2x-2sin(x+π/4)sin(x-π/4).若tana=2,求f(a).
已知sin² 2x+sin2xcosx-cos2x=1, x∈(0,2/π),求sinx,tanx
已知函数fx=(1+1/tanx)sin^x-2sin(x+π/4)sin(x-π/4)
已知函数f(x)=(1+1/tanx)sin^2-2sin(x+π/4)sin(x-π/4).求tana=2时,f(a)
已知函数f(X)=(1+1/tanx)sin^2x+msin(x+π/4)sin(x-π/4) 当tana=2时,f(a
若tanx/tanx-1=-1,求sin(π/2+x)cos(3π-x)的值
已知函数f(x)=(1−tanx)[1+2sin(2x+π4)].
已知2tanx/1+tanx的平方=3/5求sin(π/4+x)的平方的值