Question # 1

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i

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c = 0

b = 0, c = 0

Complex roots of real quadratic equation always occur in:

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conjugate pair

ordered pair

reciprocal pair

none of these

If α, ß are the roots of x² + kx + 12=0 such that α-ß = 1 then K = :

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0

±5

±7

±15

Synthetic division is a process of:

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division

subtraction

addition

multiplication

3^2x - 3^x - 6 = 0 is:

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reciprocal equation

exponentialequation

radicalequation

none of these

If the roots of x² - bx + c = 0 are two consecutive integers, then: b² - 4ac =

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0

1

-1

2

If P(x) is a polynomial of degree m and Q(x) is a polynomial of degree n, the product P(x) . Q(x) will be a polynomial of degree:

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m . n

m - n

m + n

m × n

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linear equation

Quadraticequation

cubicequation

radicalequation

If the sum of the roots of ax² - (a + 1) x + (2a + 1) = 0 is 2, then the product of the roots is:

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1

2

3

4

Sum of all four fourth roots of unity is:

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1

0

-1

3

Solution set of the equation x² - 3x + 2 = 0 is

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{-1, 2}

{1, -2}

{-1, -2}

{1, 2}

If the sum of the roots of the equation kx² - 2x + 2k = 0 is equal to their product, then the value of k is:

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1

2

3

4

In ax² + bx + c = 0, if b² - 4ac > 0 and perfect square the roots are:

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rational

irrational

equal

complex

If a polynomial P(x) = x2 + 4x2 - 2x + 5 is divided by x - 1, then the reminder is:

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8

-2

4

5

The roots of the equation 25x² - 30x + 9 = 0 are;

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rational

irrational

equal

complex

If one root of 2x² + ax + 6 = 0 is 2 then the value of a is:

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7

-7

If P(x) is a polynomial of degree m and Q(x) is a polynomial of degree n, the quotient P(x) + Q(x) will produce a polynomial of degree:

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m . n, plus a quotient

m - n, plus a remainder

m ÷ n, plus a factor

m + n, plus a remainder

For what value of k, the roots of the equation x² + √k x + 2 = 0 are equal:

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1

8

2

4

How many complex cube roots of unity are there:

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2

0

1

3

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11th Class FA Mathematics Chapter 4 Online Test MCQs With Answers

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