1.

\[\sqrt{3}\,\text{cosec}\,{{20}^{o}}-\sec \,{{20}^{o}}=\] [IIT 1988]

A. 2
B. \[\frac{2\,\sin {{20}^{o}}}{\sin {{40}^{o}}}\]
C. 4
D. \[\frac{4\,\sin {{20}^{o}}}{\sin {{40}^{o}}}\]
Answer» D. \[\frac{4\,\sin {{20}^{o}}}{\sin {{40}^{o}}}\]


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