Question

( y=tan ^{-1}left(frac{1-cos x}{sin x}right) )
( y=tan ^{-1} frac{left(1 sin ^{2} frac{x}{2}right.}{left.1 / sin frac{pi cos x}{2}right)} )
( y=tan ^{-1}left(tan frac{x}{2}right) )
( y^{2} frac{x}{2} )
( frac{d y}{d x}=frac{1}{2} )

# Differentiate tan-1 1-losul cor do u simu

Solution