trigonometry

Related Questions

• A tower of height b subtends an angle at a point O on the level of the foot of the tower and at a distance a from the foot of the tower. If a pole mounted on the tower also subtends an equal angle at O, the height of the pole is

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• The general value of $\theta $satisfying the equation $2{{\sin }^{2}}\theta -3\sin \theta -2=0$ is

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• If $\cos \theta +\cos 2\theta +\cos 3\theta =0$, then the general value of $\theta $ is

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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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• Minimum value of $5{{\sin }^{2}}\theta +4{{\cos }^{2}}\theta $is

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