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

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

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

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

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 tan y = (tan x+sec x-1)/(tanx -sec x+1) show that (dy)/(dx) = 1/2

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