设f '(sinx^2)=cos2x+tanx^2 (0
已知函数f(x)=(1+sin2x+cos2x)/(1+tanx.) (1)设a=(2,-1),b=(cosx,sinx
设(2cosx-sinx)(sinx+cos2x+3)=0,则2cos^2x+sin2x/1+tanx=?
证明tan3x/2-tanx/2=2sinx/(cosx+cos2x)
化简sin2x*tanx cos2x*1/tanx 2sinx*cosx
f(tanx)=cos2x,则f(2)值为
设f(sinx)=cos2x,则f(根号3/2)等于
已知1+tanx/1-tanx=3 求sin2x+2sinx·cosx-cos2x/sin2x+2cos2x
设f(tanx)=cos2x,求f(x)
设f(tanx)=cos2x,求f(x)如何解答
设函数f(x)=sinx/tanx
已知函数f(x)=sinx/2-2cosx/2=0 (1)求tanx的值 (2)求cos2x/根号2cos(π/4+x)
已知f'[(sinx)^2]=(cosx)^2+(tanx)^2,0