જો $\cosh x = \frac{4}{3}$ હોય,તો $3 \cosh x + 3^2 \cosh 2x + 3^3 \cosh 3x = $

કિંમત શોધો: $\sin ^2 18^{\circ}+\sin ^2 24^{\circ}+\sin ^2 36^{\circ}+\sin ^2 42^{\circ}+\sin ^2 78^{\circ}+\sin ^2 90^{\circ}+\sin ^2 96^{\circ}+\sin ^2 102^{\circ}+\sin ^2 138^{\circ}+\sin ^2 162^{\circ}$

$6(\sin^6 \theta + \cos^6 \theta) - 9(\sin^4 \theta + \cos^4 \theta) + 4$ ની કિંમત શોધો.

$\frac{\tan A + \sec A - 1}{\tan A - \sec A + 1} = $

જો $\operatorname{cosec} \theta = \frac{p+q}{p-q}$ હોય,તો $\cot \left(\frac{\pi}{4} + \frac{\theta}{2}\right)$ ની કિંમત શોધો.

$\sin 36^\circ \sin 72^\circ \sin 108^\circ \sin 144^\circ = $