Question # 1

If Z = Z₂ and Z₂ = Z₃ then Z₁ = Z₃ this property is known as ______ property:

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Reflexive

Symmetric

Transitive

Commutative

The conjugate of 5 + 4i is

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-5 + 4i

-5 - 4i

5 - 4i

5 + 4i

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x

x⁷

x ^1/7

x^7/2

Solution of x²= -1 in real numbers:

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-1

+1

Solution does not exist

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

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{0}

{0, -1}

{0,1}

Real part of 2ab(i + i²) is:

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2ab

-2ab

2abi

-2abi

The value i¹⁰

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1

-1

i

-i

a^m.aⁿ = a^m+nis ________ law of exponents.

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Sum of powers

Power of fraction

Power of power

Law of quotient

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Conjugate of -3 is:

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3

-3

-3i

3i

Every real number is also a complex number with imaginary part as ______

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1

b

O

10

Write 4^2/3with radical sign

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A non-terminating, non-recurring decimal represents:

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A natural number

A rational number

An Irrational number

Prime number

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 6 + 5i.

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-6 + 5i

-6 - 5i

6 + 5i

6 - 5i

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3

1/3

35

None of these

Real part in -3i is:

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3

O

-3

1

If Z < 0 then x < y→

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xz < yz

xz > yz

xz = yz

None of these

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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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