The general solution of the differential equation {dy]/{dx} + \sin ({x+y]/2) = \sin({x-y}/2) is

Correct Answer is : log |tanπ4| = c−2sinx2

log |\tan(y/4+\pi/4)| = x-2sin x/2

log |\tan(y/4+\pi/4)| = x-2sin x