यदि \({\rm X} = 3 + 2\sqrt 2 \) , x > 0 है, तो \(\sqrt {\rm X} - \frac{1}{{\sqrt {\rm X} }}\) का मान क्या है?

1
1
2
\(\sqrt 2 \)
3
2
4
\(2\sqrt 2 \)

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