trigonometry

Related Questions

• The minimum value of $9{{\tan }^{2}}\theta +4{{\cot }^{2}}\theta $is

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

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• If $\cos {{40}^{o}}=x$ and $\cos \theta =1-2{{x}^{2}}$, then the possible values of $\theta $lying between ${{0}^{o}}$and ${{360}^{o}}$is

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• $\frac{{{\cot }^{2}}15{}^\circ -1}{{{\cot }^{2}}15{}^\circ +1}=$

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• Let$0<x<\frac{\pi }{4}.$Then $\sec 2x-\tan 2x=$

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