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# Cube Roots of Unity MCQ (Multiple Choice Questions) PDF - 70

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The Cube Roots of Unity Multiple Choice Questions (MCQ) with Answers PDF, Cube Roots of Unity MCQs PDF e-Book download Ch. 9-70 to solve College Math Practice Tests. Study Quadratic Equations quiz answers PDF, Cube Roots of Unity Multiple Choice Questions (MCQ Quiz) to study online educational courses. The Cube Roots of Unity MCQs App: Free download educational app for cube roots of unity, triple angle identities, relation b/w roots and the coefficients of quadratic equations, inverse of a function, algebra and trigonometry test prep for best online ACT prep class.

The MCQs: Sum of all three cube roots of unity is; "Cube Roots of Unity MCQs" App (Android & iOS) with answers: −1; 1; 3; 0; to study online educational courses. Practice Quadratic Equations Questions and Answers, Google eBook to download free sample for GRE prep classes.

## Cube Roots of Unity Questions and Answers : Quiz 70

MCQ 346:

The sum of all three cube roots of unity is

1. 1
2. −1
3. 3
4. 0
MCQ 347:

Sin3θ/sinθ +cos3θ/cosθ =

1. sinθ
2. 2cot2θ
3. cosθ
4. cosθ
MCQ 348:

If a > 0, then the function ƒ(x) = ax² + bx + c has a minimum value at

1. ƒ(a/2b)
2. ƒ(-a/2b)
3. ƒ(-b/2a)
4. None of Above
MCQ 349:

If f is a bijective function, then ƒ(f-1(x)) =

1. 0
2. 1
3. 2
4. x
MCQ 350:

Cos²θ+sin²θ =

1. −2
2. −1
3. 0
4. 1

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