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If sqrtx- 1/sqrtx= 3sqrt 2, then x^2+1/x...

If `sqrtx- 1/sqrtx= 3sqrt 2`, then `x^2+1/x^2` is equal to:
यदि `sqrtx- 1/sqrtx= 3sqrt 2` है, तो `x^2+1/x^2` का मान क्या होगा ?

A

402

B

324

C

326

D

398

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PINNACLE-ALGEBRA-EXERCISE
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