Question # 1

If b²-4ac < 0, then roots are:

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Unreal

Imaginary

Real

Unequal

Roots of the equation 4x²-4x+1=0 are:

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Real, equal

Real, uneqal

Imaginary

Irrational

The some of cube roots of unity is:

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Zero

One

Two

Three

Cube roots of -1 are:

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2

1

0

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1

-1

0

2

If a = -2, b = -1 and c = -1, then discriminant is equal to:

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17

-17

-7

7

Synthetic division is simply a short cut of:

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H.C.F

L.C.M

Long division method

Factorization

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bc

The expression "b²-4ac" of a quadratic equation is called:

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Determinant

Redicand

Discriminant

Index

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One variable

Twovariable

Threevariable

Fourvariable

The nature of the root of equation x²-5x+5=0

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Rationaland equal

Irrationaland unequal

Irrationaland equal

Rationaland unequal

The discriminant of 7x²+8x+1=0 is:

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32

34

36

38

Sum of the cube roots of unity is:

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0

1

-1

3

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Mathematics 10th Class English Medium Unit 2 Online Test MCQs With Answers

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