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Practice cube roots of unity test with multiple choice question (MCQs): sum of all three cube roots of unity is, with choices 1, −1, 3, and 0 for online college degrees. Practice quadratic equations questions and answers for scholarships exams' problem-solving, assessment test.

Cube Roots of Unity Quiz

MCQ: Sum of all three cube roots of unity is

1. 1
2. −1
3. 3
4. 0

D

Triple Angle Identities Quiz

MCQ: Sin3θ/sinθ +cos3θ/cosθ =

1. sinθ
2. 2cot2θ
3. cosθ
4. 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

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

C

Inverse of a Function Quiz

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

1. 0
2. 1
3. 2
4. x

D

Algebra & Trigonometry Quiz

MCQ: Cos²θ+sin²θ =

1. −2
2. −1
3. 0
4. 1

D