Question # 1

A non-terminating, non-recurring decimal represent

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A natural number

A rational number

An irrational number

A prime number

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Geometrically the modulus of a complex number represents its distance from the

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Point (1,0)

Point (0,1)

Point (1,1)

Point (0,0)

Which of the following sets has closure property w.r.t. addition

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{ 0 }

{ 1 }

{ 0, -1}

{ 1, -1}

The multiplicative inverse of 2/3 is

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3/2

-2/3

-3/2

1

The set of rational number is represented by

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W

R

Q'

Q

∀a,b, c ε R ac = bc ⇒ a = b, c ≠ 0 is a

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Symmetric property

Cancellation property w.r.t multiplication

Reflexive property

Transitive property

In R the right cancellation property w.r.t. addition is

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a.a^-1= a^-1.a = 1 is a

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Commutative law of multiplication

Multiplication identity

Associative law of multiplication

Multiplication inverse

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None of these

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Multiplication property

Additive property

Trichotomy property

Transitive property of inequality

The equation |x + 4| = x has solution

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x = -2

x = 2

x = -4

x = 4

i =

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√1

√2

√-2

√-1

1.4142135... is ______

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A natural number

A rational number

A prime number

An irrational number

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A rational number

A natural number

An irrational number

An integer

The symbol of irrational is

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W

N

Q

Q'

3/2 is

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An irrational number

Whole number

A positive integer

A rational number

Every real number is

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A complex number

A rational number

A natural number

A prime number

6 is

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A prime integar

An irrational number

A rational number

An odd integer

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Additive property of inequality

Commutative property

Additive inverse

Additive identity

In set builder notation the set {0,1,2,........100} can be written as

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{x / xε B ∧ x ≤ 100}

{x / x ∈ W ∧ x < 101}

{x / x ∈ Z ∧ x < 101}

The set of first 100 whole numbers

Name the property used in a (b-c) = ab - ac

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commutative property of multiplication

distributive property of multiplication

associative property of multiplication

multiplicative inverse

a >b ⇒a +c >b +c is known as

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Trichotomy property

Additive property of inequality

Transitive property

Multiplicative property

If ∀a,b ε R,then a +b ε R is a property

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Closure law of addition

Associative law of addition

Additive inverse

Additive identity

The additive inverse of 2/3 is

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3/2

-2/3

-3/2

0

The product of complex numbers (a,b) and (c,d) is

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(ac, bd)

(ac-bd, ad+bc)

(ab,cd)

(ac+bd,ad-bc)

QUQ'

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The set of positive integers, 0 and negative integers is known as the set of

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Natural numbers

Rational numbers

All integers

Irrational numbers

The equation |x +4| = x has solution

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x = -2

x = 2

x = -4

x = 4

Every recurring decimal represents

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A natural number

A rational number

An irrational number

A whole number

∀ z ∈ C, multipliucative is

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(1,1)

(1,0)

(0,1)

None of these

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ECAT Pre General Science Mathematics Chapter 1 Number System Online Test MCQs With Answers

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