If `y=log[tan(pi/4 +x/2)])`,then `(dy)/(dx)` is

If y= log (secx+tan x ) ,then (dy)/(dx)

If y= log tan x + log cotx , then (dy)/(dx) is

If y=e^(tan x(ln sin x)) then (dy)/(dx) is equal to

If y=log(sec x+tan x), then (dy)/(dx)=

If y=log tan((pi)/(4)+(x)/(2)), show that (dy)/(dx)=sec x. Also find the value of (d^(2)y)/(dx^(2)) at x=(pi)/(4)

If y = log(tan 5x) , then find (dy)/(dx)

If y=log tan.(x)/(2) , find (dy)/(dx) .

If x=costheta,y=log ( tan ((theta)/(2))),then (dy)/(dx) =

y=3^(log_(9)(1+tan^(2)x)) then (dy)/(dx)=