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

Learn cube roots of unity quiz, online college math test 70 for online courses, distance learning. Free math MCQs questions and answers to learn cube roots of unity MCQs with answers. Practice MCQs to test knowledge on cube roots of unity, triple angle identities, relation b/w roots and the coefficients of quadratic equations, inverse of a function, algebra and trigonometry for online mathematics course test.

Free cube roots of unity course worksheet has multiple choice quiz question as sum of all three cube roots of unity is with options 1, −1, 3 and 0 with problems solving answer key to test study skills for online e-learning, viva help and jobs' interview preparation tips, study quadratic equations multiple choice questions based quiz question and answers.

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

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