trigonometry

Related Questions

• If the angle of elevation of the top of tower at a distance 500 m from its foot is 30°, then height of the tower is

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• $\tan 20{}^\circ \tan 40{}^\circ \tan 60{}^\circ \tan 80{}^\circ =$

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• The radius of the circle whose arc of length $15cm$ makes an angle of 3/4 radian at the centre is

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• The angle of elevation of the top of a tower from a point 20 metre away from its base is 45°. The height of the tower is

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• If $x+\frac{1}{x}=2\cos \alpha $, then ${{x}^{n}}+\frac{1}{{{x}^{n}}}=$

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