trigonometry

Related Questions

• The shadow of a tower is found to be 60 metre shorter when the sun’s altitude changes from ${{30}^{o}}$ to ${{60}^{o}}$. The height of the tower from the ground is approximately equal to

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• If $\tan \theta =\frac{a}{b},$then $\frac{\sin \theta }{{{\cos }^{8}}\theta }+\frac{\cos \theta }{{{\sin }^{8}}\theta }=$

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• The equation ${{(a+b)}^{2}}=4ab{{\sin }^{2}}\theta $is possible only when

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• A person is standing on a tower of height $15(\sqrt{3}+1)\,m$ and observing a car coming towards the tower. He observed that angle of depression changes from 30° to 45° in 3 sec. What is the speed of the car

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• The general value of $\theta $ satisfying ${{\sin }^{2}}\theta +\sin \theta =2$ is

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