CUET Mathematics 2025 13 May Shift 2 PYQs

$\cos^{-1}\left(\cos\frac{7\pi}{6}\right)$ equals:

Arrange the principal values of the following functions in ascending order

(A) $\csc^{-1}(2)$

(B) $\tan^{-1}(-\sqrt{3})$

(C) $\tan^{-1}(1)$

(D) $\tan^{-1}\left(\cos\frac{3\pi}{7}\right)$

Choose the correct answer from the options given below:

The value of $\tan^{-1}(1) + \cos^{-1}\left(-\frac{\sqrt{3}}{2}\right) + \sin^{-1}\left(\frac{1}{2}\right)$ is