1st Year Math Chapter 4 Quadratic Equations MCQs With Answers

If you are preparing for the entry test and looking for 1st Year Math Chapter 4 Quadratic Equations MCQs With Answers then this is the right place. Here you can get the important MCQs of this chapter. In this chapter, there are some important concepts including Quadratic equations and their solutions, three cube roots of unity, fourth roots of unity, polynomial functions, synthetic division, roots and coefficients of quadratic equations, and formation of equations whose roots are given. Then there are some more concepts including the nature of the roots of quadratic equations, the system of two equations, and problems with quadratic equations. So, you will find 1st Year Mathematics MCQs of these concepts here. Here below, a quiz is given. Solve this quiz and at the end, check the answers. Scroll down and check the MCQs.

1st Year Math Chapter 4 Quadratic Equations MCQs With Answers

966

Math Chapter 4

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1. The roots of ax^2 +bx+ c = 0 are imaginary, if:

A) b^2- 4ac != 0

B) b^2- 4ac > 0

C) b^2- 4ac < 0

D) b^2- 4ac = 0

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2. The Product of all four fourth roots of 81 is

A) -81

B) 81

C) 1

D) 0

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3. If discriminant is positive and not perfect square, then roots are

A) irrational and distinct

B) Rational & distinct

C) Real & distinct

D) Imaginary & distinct

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4. The equations involving radical expressions of the variable are called

A) exponential equations

B) reciprocal equations

C) radical equations

D) Quadratic equations

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5. The sum of all four fourth roots is 16 is:

A) 0

B) - 16

C) 1

D) 16

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6. The roots which satisfy the radical free equation but not the radical equation are called

A) exact roots

B) original roots

C) radical roots

D) Extraneous roots

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7. Product of all cube roots of -1 is.

A) 0

B) None

C) -1

D) 1

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8. If the discriminant is negative, then roots are

A) Real & distinct

B) Imaginary & distinct

C) irrational and distinct

D) Rational & distinct

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9. If discriminant is positive and perfect square, then roots are

A) Rational & distinct

B) irrational and distinct

C) Real & distinct

D) Imaginary & distinct

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10. The equation in which variable quantity occurs in the exponent is called

A) quadratic equation

B) Reciprocal equation

C) Exponential equation

D) Exponential function

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11. To convert ax²ⁿ+ bxⁿ + c = O (a!= 0 ) into quadratic form, the correct substitution

A) y = 1/x

B) y = x2"

C) y = X"

D) y = X^-n

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12. If roots of ax^2 + bx+ c = 0, (a != 0 ) are real, then

A) b^2-4ac < 0

B) b^2- 4ac >=0

C) b^2- 4ac != 0

D) b^2- 4ac <= O

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13. The roots of ax^2 + bx+ c= 0 are equal, if

A) b^2- 4ac > 0

B) b^2- 4ac = 0

C) b^2- 4ac < 0

D) b^2+ 4ac = O

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14. If discriminant is zero, then roots are

A) Real & distinct

B) Rational & unequal

C) Real & equal

D) none of these

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15. The complex cube roots of unity are____ each other.

A) Reciprocal of each other

B) Square of each other

C) all of these

D) Multiplicative inverse of each other

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16. The Sum of all cube roots of 64 is

A) -64

B) 64

C) 0

D) 1

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17. The sum of all four fourth roots of unity is

A) 0

B) unity

C) -1

D) Non

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18. The equation which remains unchanged if x is replaced by 1/x then it is called

A) Exponential equation

B) Exponential function

C) quadratic equation

D) Reciprocal equation

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19. The complex cube roots of unity are___ each other.

A) Conjugate of each other

B) None of these

C) Additive inverse of

D) Equal to each other

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20. The product of all four fourth roots of unity is

A) -1

B) 0

C) unity

D) None

Your score is

1st Year Math Chapter 4 Quadratic Equations MCQs With Answers

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