trigonometry

Related Questions

• If in any $\Delta ABC$ , $\cot \frac{A}{2},\cot \frac{B}{2},\cos \frac{C}{2}$ are in A. P. then

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• If $\cos (\theta -\alpha ),\ \cos \theta $and $\cos (\theta +\alpha )$are in H.P., then $\cos \theta \sec \frac{\alpha }{2}$is equal to

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• In a triangle $ABC,$ $a=4,b=3$ , $\angle A={{60}^{o}}$. Then c is the root of the equation

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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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• If ${{\tan }^{2}}\theta -(1+\sqrt{3})\tan \theta +\sqrt{3}=0$, then the general value of $\theta $ is

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