List of top Mathematics Questions on Trigonometric Equations asked in Maharashtra Class XII

The principal solutions of the equation \( \cos\theta = \frac{1}{2} \) are _________.

Find the approximate value of \( \sin{30^\circ 30'} \). Given that \( 1^\circ = 0.0175 \) radians and \( \cos{30^\circ} = 0.866 \).
Find the general solution of \( \sin \theta + \sin 3\theta + \sin 5\theta = 0 \)
If \( -1 \leq x \leq 1 \), prove that \( \sin^{-1}{x} + \cos^{-1}{x} = \frac{\pi}{2} \)