log tan x

int(2x + sin 2x)/(1 + cos 2x)dx is equal to a) x + log |tan x| + C b) x log|tan x| + C c) x tan x + C d) x + tan x + C

Evaluate int(sec x cosec x)/(ln tan x) dx

Prove: int_(0)^( pi/2)log|tan x|dx=0

int_(0)^(pi//2) log | tan x | dx is equal to

(d)/(dx)(e^(x)+log x+tan x+x^(6))

Find underset(x rarrpi //4) (" lim") ( ln tan x )/( 1- cot x )

Find the derivative of w.r.to x log (tan 5x)

Differentiate the following w.r.t x: e^tan x + (log x)^tan x

int (ln (tan x)) / (sin x cos x) dx