Question # 1

Which one is exponential equation:

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ax² + bx + c = 0

ax + b = 0

2^x = 16

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

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rational

irrational

equal

complex

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

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1

0

2

3

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

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0

1

-1

2

Equations having a common solution are called:

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linear

quadratic

homogeneous

simultenaeous

Complex roots of real quadratic equation always occur in:

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conjugate pair

ordered pair

reciprocal pair

none of these

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

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

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linear equation

Quadraticequation

cubicequation

radicalequation

The other name of quadratic equation is:

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linear equation

1st degree equation

2nd degree equation

none

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

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i

Four fourth roots of 625 are:

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±5,±5i

±5,±25i

±25,±25i

none of these

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

One of the roots of the equation 3x2 + 2x + k = 0 is the reciprocal of the other, then k = ...............:

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3

2

1

4

Solution set of the simultaneous equations : x + y = 1, x - y = 1 is:

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{(0,0)}

{(1,0)}

{(0,1)}

{(1,1)}

If 4^x = 2, then x equals:

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2

1

Sum of all four fourth roots of unity is:

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1

0

-1

3

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quadratic equation

reciprocal equation

exponential equation

none of these

How many complex cube roots of unity are there:

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2

0

1

3

Sum of all three cube roots of unity is:

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1

-1

0

3

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

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