trigonometry

Related Questions

• The value of $\sin \frac{\pi }{16}\sin \frac{3\pi }{16}\sin \frac{5\pi }{16}\sin \frac{7\pi }{16}$is

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• $\frac{2\sin \theta \,\tan \theta (1-\tan \theta )+2\sin \theta {{\sec }^{2}}\theta }{{{(1+\tan \theta )}^{2}}}=$

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• $\text{cosec }A-2\cot 2A\cos A=$

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• If $\tan \theta +\sin \theta =m$and $\tan \theta -\sin \theta =n,$then

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• If $\cos \theta =\frac{1}{2}\left( a+\frac{1}{a} \right),$then the value of $\cos 3\theta $is

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