trigonometry

Related Questions

• The incorrect statement is

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• The area of the equilateral triangle which containing three coins of unity radius is

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• If $\alpha ,\beta ,\gamma $ are angles of a triangle, then ${{\sin }^{2}}\alpha +{{\sin }^{2}}\beta +{{\sin }^{2}}\gamma -2\cos \alpha \cos \beta \cos \gamma $ is

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• If $\tan \theta -\cot \theta =a$ and $\sin \theta +\cos \theta =b,$ then ${{({{b}^{2}}-1)}^{2}}({{a}^{2}}+4)$ is equal to

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• $\sin 12{}^\circ \sin 24{}^\circ \sin 48{}^\circ \sin 84{}^\circ =$

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