trigonometry

Related Questions

• If a, b and c are the sides of a triangle such that ${{a}^{4}}+{{b}^{4}}+{{c}^{4}}=2{{c}^{2}}({{a}^{2}}+{{b}^{2}})$ then the angles opposite to the side C is

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• If $\cos 2\theta +3\cos \theta =0$, then the general value of $\theta $ is

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• In a $\Delta ABC$ , $b=2,C={{60}^{o}},c=\sqrt{6}$ , then $a =$

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• From a 60 meter high tower angles of depression of the top and bottom of a house are $\alpha$ and $\beta$ respectively. If the height of the house is $\frac{60\,\sin \,(\beta -\alpha )}{x},$ then $x =$

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• If the angles of a triangle be in the ratio $1 : 2 : 7$, then the ratio of its greatest side to the least side is

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