If `y={(1-tanx)/(1+tanx)}`, show that `dy/dx=(-2)/(1+sin2x)`

If y=(1-tanx)/(1+tanx) , prove that (dy)/(dx)=(-2)/(1+sin2x) .

If y=logsqrt((1-tanx)/(1+tanx)) , prove that (dy)/(dx)=-sec2x .

If y=sqrt((1+tanx)/(1-tanx))," then: "(dy)/(dx)=

If y=sqrt((1+tanx)/(1-tanx))," then: "(dy)/(dx)=

If y=(1+tanx)/(1-tanx) , then value of (dy)/(dx) is:

Find (dy)/(dx) , when If y = sqrt((sec x - tanx)/(sec x + tanx)) , show that (dy)/(dx) = sec x (tanx - sec x) .

If y=logsqrt((1+tanx)/(1-tanx)),"Prove that " (dy)/(dx)=sec2x

If A=[(1,tanx),(-tanx, 1)], " show that " A' A^(-1)=[(cos 2x,-sin 2x),(sin 2x, cos 2x)] .

If y =(tanx)^(tanx^(tanx)) , then prove that( dy/dx = 2) at x = pi/4