trigonometry

Related Questions

• $2{{\cos }^{2}}\theta -2{{\sin }^{2}}\theta =1$,then $\theta =$

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• If $\cos p\theta =\cos q\theta ,p\ne q$, then

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• The number of solutions of the given equation $\tan \theta +\sec \theta =\sqrt{3},$ where $0 < \theta <2\pi $is

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• A ladder rests against a wall so that its top touches the roof of the house. If the ladder makes an angle of 60° with the horizontal and height of the house be $6\sqrt{3}$ meters, then the length of the ladder 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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