If x=6+5, then x^2+1 x^2 -2= - Vidyadip

MCQ

If $x=\sqrt{6}+\sqrt{5}$, then $x^2+\frac{1}{x^2}-2=$

A
$2 \sqrt{6}$
B
$2 \sqrt{5}$
C
24
✓
20

✓

Answer

Correct option: D.

20

d

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