trigonometry

Related Questions

• If in a triangle $ABC$ , $\cos A+\cos B+\cos C=\frac{3}{2}$ , then the triangle is

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• If $\tan \theta +\tan 2\theta +\tan 3\theta =\tan \theta \tan 2\theta \tan 3\theta $, then the general value of $\theta $ is

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• If the sides of a triangle are in ratio 3 : 7 : 8, then R : r is equal to

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

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• $\frac{{{\cot }^{2}}15{}^\circ -1}{{{\cot }^{2}}15{}^\circ +1}=$

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