Teaching NVS PGT 2024 Test Series Mathematics Trigonometry Inverse Trigonometric Functions

The principal value of \(\sin^{-1}\left(-\dfrac{\sqrt{3}}{2}\right)+\cos^{-1}\left(\cos \left(\dfrac{7\pi}{6}\right)\right)\) is:

1
\(\dfrac{\pi}{2}\)
2
\(\dfrac{3\pi}{2}\)
3
\(\dfrac{5\pi}{6}\)
4
\(\dfrac{\pi}{3}\)
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