The value of $\sqrt {[12 - \sqrt {(68 + 48\sqrt 2 )} ]} = $
The value of $\sqrt {[12 - \sqrt {(68 + 48\sqrt 2 )} ]} = $
- A
$2 + \sqrt 2 $
- B
$2 - \sqrt 2 $
- C
$\sqrt 2 - 1$
- D
None of these
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