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JEE Math Practice Question

If $$\alpha $$ and $$\beta $$ be the roots of the equation x2 – 2x + 2 = 0, then the least value of n for which $${\left( {{\alpha \over \beta }} \right)^n} = 1$$ is :

  1. A.2
  2. B.5
  3. C.4
  4. D.3

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