1.

In the given figure \[\frac{2\tan \theta }{1-{{\tan }^{2}}\theta }\] is equal to

A. \[\cos {{60}^{{}^\circ }}\]
B. \[\sin {{60}^{{}^\circ }}\]
C. \[\tan {{60}^{{}^\circ }}\]
D. \[\sin {{30}^{{}^\circ }}\]
Answer» D. \[\sin {{30}^{{}^\circ }}\]


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