" If "y=sqrt((1+tan x)/(1-tan x))," then "(dy)/(dx)=

If y= sqrt ((1-tan 2x ) /( 1+tan 2x )) ,then (dy)/(dx) =

If Y = (1 + tan x)/(1 - tan x) , then (dy)/(dx) is

If Y = (1 + tan x)/(1 - tan x) , then (dy)/(dx) is

If y=log sqrt((1+tan x)/(1-tan x)), Prove that (dy)/(dx)=sec2x

If y=log sqrt((1-tan x)/(1+tan x)), prove that (dy)/(dx)=sec2x

If y = tan^(-1) {(x)/(1 + sqrt(1 - x^(2)))} + sin { 2 tan^(-1) sqrt((1 - x)/(1 + x))}, "then" (dy)/(dx) =

If y=tan ^(-1) sqrt(( a-x)/( a+x)) ,then (dy)/(dx) =

If y=tan^(-1) ((1+x)/(1-x)) then (dy)/(dx)=