railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Algebra Identities

যদি x = 9 + 2√10 হয়, তাহলে \(\sqrt{x - 2} + \frac{1}{\sqrt{x-2}}\) এর মান খুঁজুন।

1
\(\frac{4√5 + 2√2}{3} \)
2
\(\frac{4√5 + √2}{3} \)
3
\(\frac{√5 + √2}{3} \)
4
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