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Question 220007
JEE Mathematics · Medium

Quadratic Equations and Inequalities: Symmetric functions MCQ

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Symmetric functionsMediumQuestion 220007

Question

If α and β are roots of x² − 3x + 2 = 0, then α² + β² is:
  1. A
    5
    Correct
  2. B
    9
  3. C
    13
  4. D
    4

Correct answer

5

Explanation

α² + β² = (α+β)² − 2αβ = 9 − 4 = 5.

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