trigonometry

Related Questions

• If $A+B+C={{180}^{o}},$ then $\frac{\tan A+\tan B+\tan C}{\tan A\,.\,\tan B\,.\,\tan C}=$

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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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• A vertical pole (more than 100 m high) consists of two portions, the lower being one-third of the whole. If the upper portion subtends an angle ${{\tan }^{-1}}\frac{1}{2}$ at a point in a horizontal plane through the foot of the pole and distance 40 ft from it, then the height of the pole is

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• If $\frac{\sin (x+y)}{\sin (x-y)}=\frac{a+b}{a-b},$then $\frac{\tan x}{\tan y}$ is equal to

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• Which of the following is correct

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