trigonometry

Related Questions

• If $a\cos \theta +b\sin \theta =m$ and $a\sin \theta -b\cos \theta =n,$ then ${{a}^{2}}+{{b}^{2}}=$

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• Two pillars of equal height stand on either side of a roadway which is 60 metres wide. At a point in the roadway between the pillars, the elevation of the top of pillars are 60° and 30°. The height of the pillars is

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

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• Which of the following relations is correct

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• If cot $(\alpha +\beta )=0,$then $\sin (\alpha +2\beta )=$

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