Question # 1

The value of i^{9 is:}

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1

-1

i

-i

Solution of x²= -1 in real numbers:

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-1

+1

Solution does not exist

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-2/5

2/5

5/2

Which of the following is associative property w.r.to addition:

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a + b = b + a

a (bc) = (ab) c

a + (b + c) = (a + b) + c

None of these

The conjugate of 5 + 4i is

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-5 + 4i

-5 - 4i

5 - 4i

5 + 4i

Conjugate of -3 is:

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3

-3

-3i

3i

Identify the property used in x > y Or x = y Or x < y:

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Symmetric

Reflexive

Irichotomy

Transitive

Set of Real numbers =

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Q

Q'

QႶQ'

QUQ'

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Natural number

Whole number

integers

Rational numbers

Imaginary part of -i (3i+2) is:

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-2

2

3

-3

Symbol "For all" is used:

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A

Ɐ

gama

D

The real numbers are represented geometrically by points on _________,

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Plane

Line

Space

None

Which of the following sets have the Closure Property w.r.t addition.

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{0}

{0, -1}

{0,1}

Write 4^2/3with radical sign

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5/4

4/5

-5/4

-4/5

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3

1/3

35

None of these

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a = Im

a = Re(z)

a = Natural number

None of these

∀ a∈ R⇒ a = a is __________ property:

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Reflexive

Symmetric

Transitive

Additive property

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9th Class Mathematics Chapter 2 Real and Complex numbers English Medium KPK Boards Online Mcqs MCQs With Answers

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