trigonometry

Related Questions

• The equation ${{\sec }^{2}}\theta =\frac{4xy}{{{(x+y)}^{2}}}$is only possible when

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• If $\sqrt{3}\tan 2\theta +\sqrt{3}\tan 3\theta +\tan 2\theta \tan 3\theta =1$, then the general value of$\theta $ is

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• If $x=\sec \theta +\tan \theta ,$then $x+\frac{1}{x}=$

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• If $2y\,\cos \theta =x\sin \,\theta \text{ and }2x\sec \theta -y\,\text{cosec}\,\theta =3,$ then ${{x}^{2}}+4{{y}^{2}}=$

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• If $\cos 7\theta =\cos \theta -\sin 4\theta $, then the general value of $\theta $is

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