trigonometry

Related Questions

• Two vertical poles of equal heights are 120 m apart. On the line joining their bottoms, A and B are two points. Angle of elevation of the top of one pole from A is 45° and that of the other pole from B is also 45°. If AB = 30 m, then the height of each pole is

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• The function $f(x)=\sin \frac{\pi x}{2}+2\cos \frac{\pi x}{3}-\tan \frac{\pi x}{4}$ is period with period

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• If $\sin \theta +\text{cosec}\theta =2,$ the value of ${{\sin }^{10}}\theta +\text{cose}{{\text{c}}^{10}}\theta $ is

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• The angle of elevation of the sun, when the shadow of the pole is $\sqrt{3}$ times the height of the pole, is

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• If $\sin \theta =\frac{12}{13},(0<\theta <\frac{\pi }{2})$ and $\cos \varphi =-\frac{3}{5},\left( \pi <\varphi <\frac{3\pi }{2} \right)$. Then $\sin (\theta +\varphi )$will be

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