trigonometry

Related Questions

• The angle of elevation of a tower from a point A due south of it is 30° and from a point B due west of it is 45°. If the height of the tower be 100 metres, then AB =

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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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• If $\tan \theta -\cot \theta =a$ and $\sin \theta +\cos \theta =b,$ then ${{({{b}^{2}}-1)}^{2}}({{a}^{2}}+4)$ is equal to

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• ${{\cos }^{2}}A{{(3-4{{\cos }^{2}}A)}^{2}}+{{\sin }^{2}}A{{(3-4{{\sin }^{2}}A)}^{2}}=$

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• If $\tan \theta +\tan 2\theta +\sqrt{3}\tan \theta \tan 2\theta =\sqrt{3},$then

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