Indefinite Integration

\(\operatorname{cosec} a \cdot \log [\sin (x-a) \operatorname{cosec} x]+c\)

\(\operatorname{cosec} a \log [\sin (x-a) \sin x]+c\)

\(\sin a \cdot \log [\sin (x-a) \sin x]+c\)

\(\operatorname{cosec} a \cdot \log [\operatorname{cosec}(x-a) \sin x]+c\)