1.

If $$x = 5 + 2\sqrt 6 {\text{,}}$$then the value of $$\left( {\sqrt x+ \frac{1}{{\sqrt x }}} \right)\,{\text{is?}}$$

A. ${\text{2}}\sqrt 2 $$
B. ${\text{3}}\sqrt 2 $$
C. ${\text{2}}\sqrt 3 $$
D. ${\text{3}}\sqrt 3 $$
Answer» D. ${\text{3}}\sqrt 3 $$


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