If a = √3 + √2, then the value of a³ + 1/a³ = ?

If a = √3 + √2, then the value of a³ + 1/a³ = ?

  1. a) 10√3
  2. b) 12√3
  3. c) 12√3
  4. d) 18√3

From the Combined Bank Senior Officer October 2021 – Preliminary exam, question 85 of 108.

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