trigonometry

Related Questions

• If the sides of a triangle are p,q and$\sqrt{{{p}^{2}}+pq+{{q}^{2}}}$ , then the biggest angle is

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• In $\Delta ABC,$ if ${{\sin }^{2}}\frac{A}{2},{{\sin }^{2}}\frac{B}{2},{{\sin }^{2}}\frac{C}{2}$ be in H. P. then a, b, c will be in

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• If $\cos x+\cos y+\cos \alpha =0$ and $\sin x+\sin y+\sin \alpha =0,$ then $\cot \,\left( \frac{x+y}{2} \right)=$

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• A vertical pole consists of two parts, the lower part being one third of the whole. At a point in the horizontal plane through the base of the pole and distance 20 meters from it, the upper part of the pole subtends an angle whose tangent is $\frac{1}{2}$. The possible heights of the pole are

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

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