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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• The value $\cos 105{}^\circ +\sin 105{}^\circ $is

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• If $\tan \alpha =\frac{1}{7}$and $\sin \beta =\frac{1}{\sqrt{10}}\left( 0<\alpha ,\,\beta <\frac{\pi }{2} \right)$, then $2\beta $is equal to

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• $\text{cosec }A-2\cot 2A\cos A=$

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• The number of triangles ABC that can be formed with $a=3,b=8$ and $\sin A=\frac{5}{13}$ is

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