trigonometry

Related Questions

• Common roots of the equations $2{{\sin }^{2}}x+{{\sin }^{2}}2x=2$ and $\sin 2x+\cos 2x=\tan x,$ are

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• A house subtends a right angle at the window of an opposite house and the angle of elevation of the window from the bottom of the first house is 60°. If the distance between the two houses be 6 metres, then the height of the first house is

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• The value of the expression $1-\frac{{{\sin }^{2}}y}{1+\cos \,y}+\frac{1+\cos \,y}{\sin \,y}-\frac{\sin \,\,y}{1-\cos \,y}$ is equal to

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• A tower subtends angles $\alpha ,\,2\alpha ,\,3\alpha $respectively at points A, B and $C$, all lying on a horizontal line through the foot of the tower. Then $AB/BC=$

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• The angle of elevation of the top of a tower from the top of a house is 60° and the angle of depression of its base is 30°. If the horizontal distance between the house and the tower be 12 m, then the height of the tower is

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