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The MCQ: If one root of equation x² - 3x + a = 0 is 2, then; "Cube Roots of Unity" App Download (Free) with answers: A = -2; A = 2; A = 0; A = -3; to learn online classes courses. Practice Cube Roots of Unity Quiz Questions, download Apple eBook (Free Sample) for online college classes.

## Cube Roots of Unity MCQs: Questions and Answers

MCQ 1:

For a quadratic equation ax² + bx + c sum of the root is

1. b/a
2. −b/a
3. c/a
4. None of Above
MCQ 2:

If one root of the equation x² - 3x + a = 0 is 2, then

1. a = -2
2. a = 2
3. a = 0
4. a = -3
MCQ 3:

If ω is the imaginary cube root of unity, then ω =

1. 1
2. 0
3. ω-2
MCQ 4:

If one root of the equation is (- 1 - ι), then the other root is

1. 1 - ι
2. 1 + ι
3. −1 - ι
4. None of Above
MCQ 5:

The sum of all three cube roots of unity is

1. 1
2. −1
3. 3
4. 0

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