Question # 1

The discriminant of 2x²-7x+1= 0 is:

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41

45

43

47

The nature of roots in equation 7x²+8x+1=0 is:

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Rational and unequal

Irrational and unequal

Rationaland equal

Irrationaland equal

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Product of two roots =

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4

3

1

0

If b²-4ac < 0, then roots are:

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Unreal

Imaginary

Real

Unequal

Sum of the cube roots of unity is:

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0

1

-1

3

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P(Product of the roots)

S (Sum of the roots)

D (Difference of the roots)

R (Ratio of the roots)

Roots of following equation are: 9x²-4x+1=0:

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Real, Equal

Real, Unequal

Imaginary

Irrational

If 1 is the zero of polynomial, then remainder is:

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3

2

0

1

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-2

2

4

-4

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2

6

5

In equation ax²+bx+c=0, a and b are:

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Constants

Co-efficients

Variables

Factors

The value of i is equal to:

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Identify the equation whose roots are imaginary and unequal:

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2x²-x+1=0

x²+8x+16=0

3x²+4x+2=0

x²-7x+7=0

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10th Class Mathematics Chapter 2 Theory of Quadratic Equations English Medium KPK Boards Online MCQ's MCQs With Answers

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