trigonometry

Related Questions

• $\cos 15{}^\circ =$

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• ${{\sin }^{6}}\theta +{{\cos }^{6}}\theta +3{{\sin }^{2}}\theta {{\cos }^{2}}\theta =$

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• In $\Delta ABC,\ \,2{{R}^{2}}\sin A\sin B\sin C=$

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• If angles of a triangle are in the ratio of $2 : 3: 7$, then the sides are in the ratio of

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• The period of the function $y=\sin 2x$ is

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