trigonometry

Related Questions

• If ABCD is a cyclic quadrilateral, then the value of $\cos A-\cos B+\cos C-\cos D=$

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• If in a triangle ABC, a, b, c and angle A is given and $c\sin A<a<c,$ then

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• $\alpha ,\,\,\beta ,\,\,\gamma $ are real numbers satisfying $\cot \frac{A}{2}\cot \frac{B}{2}\cot \frac{C}{2}$. The minimum value of the given expression $\sin \alpha +\sin \beta +\sin \gamma $ is

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• If $\sin \theta +\cos \theta =1$ then the general value of $\theta $is

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• The base of a cliff is circular. From the extremities of a diameter of the base the angles of elevation of the top of the cliff are 30° and 60°. If the height of the cliff be 500 metres, then the diameter of the base of the cliff is

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