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Complex Cube Roots of Unity MCQ Questions with Answers PDF Download eBook

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MCQs on Complex Cube Roots of Unity PDF Download eBook

MCQ: The product of 3 cube roots of unity is/are

  1. 2
  2. 3
  3. 4
  4. 1

D

MCQ: Roots of the equation 9x² - 9x + 1 = 0 are

  1. real, equal
  2. real, unequal
  3. imaginary
  4. irrational

A

MCQ: 1 ⁄ α + 1 ⁄ β is equal to

  1. 1 ⁄ α
  2. 1 ⁄ β
  3. α + β ⁄ αβ
  4. α - β ⁄ αβ

C

MCQ: If α and β are the roots of 3x² + 5x - 2 = 0 then α + β should be

  1. 5 ⁄ 2
  2. −5 ⁄ 3
  3. 2 ⁄ 3
  4. 3 ⁄ 5

B

MCQ: 2 square roots of unity are

  1. 1, −1
  2. 1, ω
  3. 1, −ω
  4. ω and ω²

A