# MCQs Theory of Quadratic Equations 1

Online multiple-choice questions about the Theory of Quadratic Equations Class 10 with Answers. The Quiz contains 20 MCQs from Chapter 2 of class 10 Mathematics. Let us start with the Theory of Quadratic Equations Quiz.

Online Multiple Choice Questions from Chapter 2 of 10th class mathematics “Theory of Quadratic Equations”

1. Cube roots of $-1$ are

2. If $\alpha$ and $\beta$ are the roots of $7x^2-x+4=0$ then $\alpha\beta$ is

3. Two square roots of unity are

4. If $\alpha$ and $\beta$ are the roots of $3x^2+5x-2=0$ then $\alpha + \beta$ is

5. Discriminant of $2x^2 -7x+1=0$ is

6. The discriminant of $ax^2+bx+c=0$ is

7. If $b^2-4ac>0$ and is a perfect square then roots of $ax^2+bx+c=0$ are

8. If $b^2-4ac=0$ then roots of $ax^2+bx+c=0$ are

9. $\frac{1}{\alpha} + \frac{1}{\beta}$ is equal to

10. If $\alpha, \beta$ are the roots of $x^2-x-1=0$ then product of the roots $2\alpha$ and $2\beta$ is

11. If $b^2-4ac <0$ then the roots of $ax^2+bx+c=0$ are

12. The sum of the cube roots of unity is

13. Discriminant of $x^2-3x+3=0$ is

14. If $\alpha, \beta$ are the roots of $px^2+qx+r=0$ then sum of the roots $2\alpha$ and $2\beta$ is

15. The roots of the equation $4x^2-5x+2=0$ are

16. $\alpha^2+\beta^2$ is equal to

17. The product of cube roots of unity is

18. The nature of the roots of equation $ax^2+bx+c=0$ is determined by

19. If $b^2-4ac>0$ but not a perfect square then roots of $ax^2+bx+c=0$ are

20. The roots of the equation $4x^2-4x + 1 =0$ are

### Theory of Quadratic Equations 10 Class Mathematics

• If $\alpha$ and $\beta$ are the roots of $3x^2+5x-2=0$ then $\alpha + \beta$ is
• If $\alpha$ and $\beta$ are the roots of $7x^2-x+4=0$ then $\alpha\beta$ is
• The roots of the equation $4x^2-5x+2=0$ are
• Cube roots of $-1$ are
• The sum of the cube roots of unity is
• The product of cube roots of unity is
• If $b^2-4ac <0$ then the roots of $ax^2+bx+c=0$ are If $b^2-4ac>0$ but not a perfect square then roots of $ax^2+bx+c=0$ are
• $\frac{1}{\alpha} + \frac{1}{\beta}$ is equal to
• $\alpha^2+\beta^2$ is equal to
• Two square roots of unity are
• The roots of the equation $4x^2-4x + 1 =0$ are
• If $\alpha, \beta$ are the roots of $px^2+qx+r=0$ then sum of the roots $2\alpha$ and $2\beta$ is
• If $\alpha, \beta$ are the roots of $x^2-x-1=0$ then product of the roots $2\alpha$ and $2\beta$ is
• The nature of the roots of equation $ax^2+bx+c=0$ is determined by
• The discriminant of $ax^2+bx+c=0$ is
• If $b^2-4ac>0$ and is a perfect square then roots of $ax^2+bx+c=0$ are
• If $b^2-4ac=0$ then roots of $ax^2+bx+c=0$ are
• Discriminant of $2x^2 -7x+1=0$ is
• Discriminant of $x^2-3x+3=0$ is

https://itfeature.com

https://rfaqs.com