trigonometry

Related Questions

• If $\tan 2\theta \tan \theta =1$, then the general value of$\theta $is

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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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• If the sides of the triangle are $5K,\ 6K,\ 5K$and radius of incircle is 6 then value of K is equal to

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

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• If in a triangle $ABC$ , $\angle C={{60}^{o}},$ then $\frac{1}{a+c}+\frac{1}{b+c}=$

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