trigonometry

Related Questions

• The angle of elevation of the top of a pillar at any point A on the ground is 15°. On walking 40 metres towards the pillar, the angle become 30°. The height of the pillar is

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• If $x,\,y,\,z$are perpendicular drawn $a,\,b$ and $c$, then the value of $\frac{bx}{c}+\frac{cy}{a}+\frac{az}{b}$will be

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• If the sides of a triangle are in the ratio $2:\sqrt{6}:(\sqrt{3}+1)$ , then the largest angle of the triangle will be

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• If $\theta $is an acute angle and $\sin \frac{\theta }{2}=\sqrt{\frac{x-1}{2x}}$, then $\tan \theta $ is equal to

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• In $\Delta ABC,\left( \cot \frac{A}{2}+\cot \frac{B}{2} \right)\,\left( a{{\sin }^{2}}\frac{B}{2}+b{{\sin }^{2}}\frac{A}{2} \right)$ =

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