trigonometry

Related Questions

• In$\Delta ABC,$ if $\cot A,\cot B,\cot C$ be in A. P., then ${{a}^{2}},\text{ }{{b}^{2}},\text{ }{{c}^{2}}$ are in

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• If $\sin x+\cos x=\frac{1}{5},$then $\tan 2x$is

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• The horizontal distance between two towers is 60 metres and the angular depression of the top of the first tower as seen from the top of the second, is 30°. If the height of the second tower be 150 metres, then the height of the first tower is

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• If $\cos \theta =\frac{-1}{2}$and ${{0}^{o}}<\theta <{{360}^{o}}$, then the values of $\theta $are

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• If $\cos \theta +\cos 2\theta +\cos 3\theta =0$, then the general value of $\theta $ is

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