# Cube Roots of Unity Quiz Questions and Answers 70 PDF Download

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## Quiz on Cube Roots of Unity Worksheet 70Quiz PDF Download

Cube Roots of Unity Quiz

MCQ: Sum of all three cube roots of unity is

- 1
- −1
- 3
- 0

D

Triple Angle Identities Quiz

MCQ: Sin3θ/sinθ +cos3θ/cosθ =

- sinθ
- 2cot2θ
- cosθ
- cosθ

B

Relation b/w roots & the coefficients of quadratic equations Quiz

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

- ƒ(a/2b)
- ƒ(-a/2b)
- ƒ(-b/2a)
- None of Above

C

Inverse of a Function Quiz

MCQ: If f is a bijective function, then ƒ(f^{-1}(x)) =

- 0
- 1
- 2
- x

D

Algebra & Trigonometry Quiz

MCQ: Cos²θ+sin²θ =

- −2
- −1
- 0
- 1

D