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1. যদি √x + 1/√x = a হয়, তবে x2 + 1/x2 এর মান কত?

  • A. a4 - 2a2 + 2
  • B. a4 - 2a2 + 2
  • C. a4 - 2a2 + 2
  • D. a4 - 2a2 + 2

Answer: Option D

Explanation:

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