trigonometry

Related Questions

• If $\sin 2\theta =\cos 3\theta $and $\theta $is an acute angle, then $\sin \theta $is equal to

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• If A, B, C, D are the angles of a cyclic quadrilateral, then $\cos \,A+\cos B+\cos \,\,C+\cos D=$

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• If the angles of a triangle are in the ratio $1: 2: 3$, then their corresponding sides are in the ratio

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• If $2\sin \theta +\tan \theta =0$, then the general values of $\theta $ are

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• If $A+B+C=\pi ,$ then ${{\tan }^{2}}\frac{A}{2}+{{\tan }^{2}}\frac{B}{2}+$${{\tan }^{2}}\frac{C}{2}$ is always

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