trigonometry

Related Questions

• The roots of the equation $1-\cos \theta =\sin \theta .\sin \frac{\theta }{2}$ is

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• Some portion of a 20 meters long tree is broken by the wind and the top struck the ground at an angle of 30°. The height of the point where the tree is broken is

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• If in $\Delta ABC,$ $a=6,b=3$ and $\cos (A-B)=\frac{4}{5}$ , then its area will be

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• If $\sin A+\cos A=\sqrt{2},$then ${{\cos }^{2}}A=$

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• In $\Delta \,ABC$ , $\frac{\cos \frac{1}{2}(B-C)}{\sin \frac{1}{2}A}=$

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