trigonometry

Related Questions

• The solution of $3\tan (A-{{15}^{o}})=\tan (A+{{15}^{o}})$ is

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• The value of $\cos 52{}^\circ +\cos 68{}^\circ +\cos 172{}^\circ $ is

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• In triangle $ABC$ if $a,b,c$ are in A. P., then the value of $\frac{\sin \frac{A}{2}\sin \frac{C}{2}}{\sin \frac{B}{2}}=$

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• If $b=3,c=4$ and $B=\frac{\pi }{3}$ , then the number of triangle that can be constructed is

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

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