trigonometry

Related Questions

• If $\sin x=\frac{-24}{25},$ then the value of $\tan x$ is

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• If $\sin (\theta +\alpha )=a$ and $\sin (\theta +\beta )=b,$ then $\cos 2\,(\alpha -\beta )-4ab\,\cos (\alpha -\beta )$ is equal to

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• If $\pi <\alpha <\frac{3\pi }{2}$, then $\sqrt{\frac{1-\cos \alpha }{1+\cos \alpha }}+\sqrt{\frac{1+\cos \alpha }{1-\cos \alpha }}$=

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• $\sin 36{}^\circ \sin 72{}^\circ \sin 108{}^\circ \sin 144{}^\circ =$

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• In $\Delta ABC,$ $\text{cosec }A(\sin B\cos C+\cos B\sin C)=$

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