Question # 1

Conjugate of 4i - 3 is:

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4i + 3

-4i - 3

-4i + 3

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Z + W

∀ a,b∈ R, a + b = b + a is _____________ Property of real numbers.

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Closure property w.r.to '+'

Closure property w.r.to 'x'

Commutative property '+'

Commutative property w.r.to 'x'

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5/4

4/5

-5/4

-4/5

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a = Im

a = Re(z)

a = Natural number

None of these

There exists a unique real number 1, is called ________ in multiplication:

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Multiplicative inverse

Additive inverse

Multiplicative identity

Additive identity

If Z < 0 then x < y→

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xz < yz

xz > yz

xz = yz

None of these

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

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Reflexive

Symmetric

Transitive

Commutative

Real part in -3i is:

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3

O

-3

1

If Z₁ = Z₂ then Z₂ = Z₁ this property is known as _______ property:

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Reflexive

Symmetric

Transitive

Closure

The real numbers are represented geometrically by points on _________,

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Plane

Line

Space

None

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

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

Every real number is:

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a Positive integer

a rational number

a negative integer

a complex number

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

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Symmetric

Reflexive

Irichotomy

Transitive

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Mathematics 9th Class English Medium Unit 2 Online Test MCQs With Answers

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