trigonometry

Related Questions

• If the area of a triangle ABC is $\Delta$, then ${{a}^{2}}\sin 2B+{{b}^{2}}\sin 2A$ is equal to

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• If $\tan \theta =\frac{20}{21}$, $\cos \theta$ will be

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

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• $2\sin A{{\cos }^{3}}A-2{{\sin }^{3}}A\cos A=$

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• If a flagstaff of 6 metres high placed on the top of a tower throws a shadow of $2\sqrt{3}\,metres$ along the ground, then the angle (in degrees) that the sun makes with the ground is

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