Question # 1

The conjugate of 6 + 5i.

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-6 + 5i

-6 - 5i

6 + 5i

6 - 5i

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Z + W

Conjugate of -3 is:

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3

-3

-3i

3i

Real part of 2ab ( i + i²) is:

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2ab

-2ab

2abi

-2abi

The real numbers are represented geometrically by points on _________,

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Plane

Line

Space

None

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

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Reflexive

Symmetric

Transitive

Commutative

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Transtitive

Multiplicative inverse

Multiplicative identity

None

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a = Im

a = Re(z)

a = Natural number

None of these

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x

x⁷

x ^1/7

x^7/2

Every real number is:

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a Positive integer

a rational number

a negative integer

a complex number

Conjugate of 4i - 3 is:

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4i + 3

-4i - 3

-4i + 3

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

Which of the following is closure property w.r.to multiplications:

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a + b∈ R∀ a, b∈ R

a. b∈ R∀ a, b∈ R

a + b = b + a∀a,b∈ R

a.b = b.a∀a,b∈ R

Symbol "For all" is used:

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A

Ɐ

gama

D

∀ a∈ R⇒ a = a is __________ property:

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Reflexive

Symmetric

Transitive

Additive property

The value i¹⁰

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1

-1

i

-i

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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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