1.

If \[\sin x+\text{cosec}\,x=2,\] then \[4\sin A\,\,\sin B\,\,\sin C\] is equal to [UPSEAT 2002]

A. 2
B. \[{{2}^{n}}\]
C. \[{{2}^{n-1}}\]
D. \[{{2}^{n-2}}\]
Answer» B. \[{{2}^{n}}\]


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