List of top Mathematics Questions on Trigonometry asked in IPU CET

The value of $\tan 75^\circ - \cot 75^\circ$ is equal to
The value of $\sin 20^\circ \times \sin 40^\circ \times \sin 60^\circ \times \sin 80^\circ$ is
If \( 4\cot^2 x - 16\cot x + 15 < 0 \) and x is real then cot x lies in the interval:
If \( \int \sec^2(7 - 4x) \, dx = \tan(7 - 4x) + C \), then the value of \( a \) is: