`int (x)/( 1+cos x) dx=?`A. `x tan (x)/(2) + 2 log cos (x)/(2) + c`B. ` x tan (x)/(2) + 2 log sin (x)/(2)+c`C. None of the aboveD.

`int (x)/( 1+cos x) dx=?`A. `x tan (x)/(2) + 2 log cos (x)/(2) + c`B.

1.	`int (x)/( 1+cos x) dx=?`A. `x tan (x)/(2) + 2 log cos (x)/(2) + c`B. ` x tan (x)/(2) + 2 log sin (x)/(2)+c`C. None of the aboveD.
Answer» Correct Answer - B