A) \[3\]
B) \[\sqrt{3}\]
C) \[9\]
D) None of these
Correct Answer: A
Solution :
\[\frac{{{\sin }^{2}}A+\sin A+1}{\sin A}=\sin A+\frac{1}{\sin A}+1\] \[=\left[ {{\left( \sqrt{\sin A}-\frac{1}{\sqrt{\sin A}} \right)}^{2}}+3 \right]\ge 3\]You need to login to perform this action.
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