trigonometry

Related Questions

• The angle subtended at the centre of a circle of radius 3 metres by an arc of length 1 metre is equal to

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• If $\cot \,\theta +\tan \theta =m$and $\sec \theta -\cos \theta =n,$then which of the following is correct

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• The value of $\sin 10{}^\circ +\sin 20{}^\circ +\sin 30{}^\circ +...+$ $\sin 360{}^\circ $ is

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• If $a\tan \theta =b$, then $a\cos 2\theta +b\sin 2\theta =$

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• The value of $\cos 15{}^\circ -\sin 15{}^\circ $is equal to

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