trigonometry

Related Questions

• The period of the function $|\sin\pi x|$ is

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• Two vertical poles of equal heights are 120 m apart. On the line joining their bottoms, A and B are two points. Angle of elevation of the top of one pole from A is 45° and that of the other pole from B is also 45°. If AB = 30 m, then the height of each pole is

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• $2\sin A{{\cos }^{3}}A-2{{\sin }^{3}}A\cos A=$

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• If $\sin 5x+\sin 3x+\sin x=0$, then the value of x other than 0 lying between $0\le x\le \frac{\pi }{2}$ is

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• If $\cos (\theta -\alpha ),\ \cos \theta $and $\cos (\theta +\alpha )$are in H.P., then $\cos \theta \sec \frac{\alpha }{2}$is equal to

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