trigonometry

Related Questions

• In $\Delta ABC,\frac{\sin (A-B)}{\sin (A+B)}=$

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• If $\cos A=\cos B\,\,\cos C$and $A+B+C=\pi ,$ then the value of $\cot \,B\,\cot \,C$ is

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• $\tan A+\cot (180{}^\circ +A)+\cot (90{}^\circ +A)+\cot (360{}^\circ -A)$

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• If $\tan \alpha =\frac{1}{7},\ \tan \beta =\frac{1}{3},$then $\cos 2\alpha =$

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• If $12{{\cot }^{2}}\theta -31\,\text{cosec }\theta +\text{32}=\text{0}$, then the value of $\sin \theta $ is

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