trigonometry

Related Questions

• A person standing on the bank of a river observes that the angle subtended by a tree on the opposite bank is 60°. When he retires 40 meters from the bank, he finds the angle to be 30°. The breadth of the river 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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• In a $\Delta ABC$ , $\frac{\cos A}{a}=\frac{\cos B}{b}=\frac{\cos C}{c}$ and the side $a=2,$ then area of the triangle is

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

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• The set of values of x for which the expression $\frac{\tan 3x-\tan 2x}{1+\tan 3x\tan 2x}=1$, is

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