A) \[2\frac{1}{2}\]
B) \[3\frac{1}{2}\]
C) \[4\frac{1}{2}\]
D) \[5\frac{1}{2}\]
Correct Answer: D
Solution :
\[{{\left( \sqrt{2}+\frac{1}{\sqrt{2}} \right)}^{2}}=2+\frac{1}{2}+2\times \sqrt{2}\times \frac{1}{\sqrt{2}}=5\frac{1}{2}\]
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