MCQ
${\cos ^{ - 1}}\left( {\cos \frac{{5\pi }}{3}} \right) + {\sin ^{ - 1}}\left( {\sin \frac{{5\pi }}{3}} \right) =. . .$
- ✓$0$
- B$\frac{\pi }{2}$
- C$\frac{{2\pi }}{3}$
- D$\frac{{10\pi }}{3}$
$ = {\cos ^{ - 1}}\left[ {\cos \left( {2\pi - \frac{\pi }{3}} \right)} \right] + {\sin ^{ - 1}}\left[ {\sin \left( {2\pi - \frac{\pi }{3}} \right)} \right]$
$ = \frac{\pi }{3} - \frac{\pi }{3} = 0$.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.