trigonometry

Related Questions

• $\frac{\sin 70{}^\circ +\cos 40{}^\circ }{\cos 70{}^\circ +\sin 40{}^\circ }=$

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• If $A+B+C=\pi ,$ then $\frac{\cos A}{\sin B\sin C}+\frac{\cos B}{\sin C\sin A}+\frac{\cos C}{\sin A\sin B}=$

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• If ${{\sin }^{2}}\theta -2\cos \theta +\frac{1}{4}=0,$then the general value of $\theta $is

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• The top of a hill observed from the top and bottom of a building of height h is at the angle of elevation p and q respectively. The height of the hills is

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• $\sin 12{}^\circ \sin 24{}^\circ \sin 48{}^\circ \sin 84{}^\circ =$

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