trigonometry

Related Questions

• In a triangle ABC, the value of $\sin A+\sin B+\sin C$ is

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• The angular elevation of a tower CD at a point A due south of it is 60° and at a point B due west of A, the elevation is 30o. If AB = 3 km, the height of the tower is

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• The value of $\sin 600{}^\circ \cos 330{}^\circ +\cos 120{}^\circ \sin 150{}^\circ $ is

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• If $\cos A=\frac{\sqrt{3}}{2},$then $\tan 3A=$

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• ${{\cos }^{2}}48{}^\circ -{{\sin }^{2}}12{}^\circ =$

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