trigonometry

Related Questions

• $\cot \theta =\sin 2\theta (\theta \ne n\pi $, n is integer), if $\theta =$

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• If $\sin \text{ }\left( \frac{\pi }{4}\cot \theta \right)=\cos \text{ }\left( \frac{\pi }{4}\tan \theta \right)\,\,,$ then $\theta =$

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• The angle of elevation of the top of a tower at point on the ground is 30°. If on walking 20 metres toward the tower, the angle of elevation become 60°, then the height of the tower is

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• The number of values of x in the interval [0, 5$\pi $] satisfying the equation $3{{\sin }^{2}}x-7\sin x+2=0$is

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• If $\tan (\pi \cos \theta )=\cot (\pi \sin \theta )$, then $\sin \left( \theta +\frac{\pi }{4} \right)$ equals

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