trigonometry

Related Questions

• If $\sin \theta +\sin \varphi =a$and $\cos \theta +\cos \varphi =b,$then $\tan \frac{\theta -\varphi }{2}$is equal to

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• If $2{{\tan }^{2}}\theta ={{\sec }^{2}}\theta ,$then the general value of $\theta $ is

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• A tree is broken by wind, its upper part touches the ground at a point 10 metres from the foot of the tree and makes an angle of 45° with the ground. The total length of tree is

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• In triangle ABC, the value of $\sin 2A+\sin 2B+\sin 2C$ is equal to

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• If $\cos A=\frac{3}{4}$, then $32\sin \frac{A}{2}\cos \frac{5}{2}A=$

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