int(ln(1+cos x)-x tan(x)/(2))dx" is equal to "

int(log(1+cos x)-x tan((x)/(2)))dx

int cos x log tan((x)/(2))dx

int("cosec x")/(cos^(2)(1+log tan.(x)/(2)))dx is equal to

int cos x. log (tan (x/2)) dx =

What is int_(0)^(pi) log (tan""(x)/(2)) dx equal to?

int x.2^(ln(x^(2)+1))dx is equal to

int x.2^(ln(x^(2)+1))dx is equal to

int(cos4x-1)/(cot x-tan x)dx is equal to (A)(1)/(2)ln|sec2x|-(1)/(4)cos^(2)2x+c(B)(1)/(2)ln|sec2x|+(1)/(4)cos^(2)x+c(C)(1)/(2)ln|cos2x|-(1)/(4)cos^(2)2x+c(D)(1)/(2)ln|cos2x|+(1)/(4)cos^(2)x+c

int(1)/(x(1+log x)^(2))dx is equal to