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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• $\sin \left( \frac{\pi }{10} \right)\sin \left( \frac{3\pi }{10} \right)=$

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• $\frac{\sin 3\theta -\cos 3\theta }{\sin \theta +\cos \theta }+1=$

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• If the angle of elevation of the top of tower at a distance 500 m from its foot is 30°, then height of the tower is

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• The smallest positive angle which satisfies the equation $2{{\sin }^{2}}\theta +\sqrt{3}\cos \theta +1=0$, is

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