# Nature of roots of quadratic equation Quiz Questions and Answers 74 PDF Download

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## Quiz on Nature of roots of quadratic equation Worksheet 74Quiz PDF Download

Nature of roots of quadratic equation Quiz

MCQ: Roots of quadratic equation x² - 6x + 10 = 0 are

- equal
- imaginary
- irrational
- real

B

Double Angle Identities Quiz

MCQ: Cotα-tanα =

- −2tan2α
- 2tan2α
- −2cot2α
- 2cot2α

B

Harmonic Mean Quiz

MCQ: If a^{n+1} + b^{n+1}/a^{n} + b^{n} is harmonic mean between a and b, then n =

- −1
- 1
- −2
- 0

C

Online Math Learning Quiz

MCQ: Cos(α - β) =

- cosαcosβ+sinαsinβ
- cosαcosβ+sinαsinβ
- sinαcosβ-cosαsinβ
- sinαcosβ+cosαsinβ

B

Algebra & Trigonometry Quiz

MCQ: Sin²2θ =

- 1 - cos²θ
- 1+cos²θ
- 1+cosθ
- 1 - cos²2θ

D