Teaching UP PGT Mock Test Series 2024 Mathematics Trigonometry Inverse Trigonometric Functions

The value of \(\cos^{-1}\left (\cot \left (\dfrac {\pi}{2}\right )\right ) + \cos^{-1} \left (\sin \left (\dfrac {2\pi}{3}\right )\right )\) is

1
\(\dfrac {2\pi}{3}\)
2
\(\dfrac {\pi}{3}\)
3
\(\dfrac {\pi}{2}\)
4
\(\pi\)
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