Question # 1

If A and B are two sets then intersection of A and B is denoted by

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The negation of given number is a

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Binary operation

Unary operation

Relation

None of these

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The set {-1, 1} is

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Group under the multiplication

Group under addition

Does not form a group

Contains no identity element

Let A,B and C be any sets such that A∪B = A∪C and A∩ B = A∩ C then

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A = B

B = C

A≠ C

A ≠ B

The number of subset of {0} is

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1

2

3

None

The complement of set A relative to universal set U is the set

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{x / x∈ A∧ x∈ U}

{x / x∉ A∧ x ∈ U}

{x / x∈ A and x ∉ U}

A-U

If E = { } , then P(E)

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∅

{ }

{(2),(4),(6)....}

(∅)

{x : xε Z and x < 1} is

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Singleton set

A set with two points

Empty set

None of these

If C={p/p < 18, p is a prime number}, then C =

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{2,3,4,.........17}

{2,4,6,8................16}

{1,3,5,7,9,11,13,15,17}

{3,6,9,12,15}

Which conjunction is not true ?

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Addition

Subtraction

Multiplication

None of these

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Biconditional

Implication

Antecedent

Hypothesis

For a set A, A∪Ac= ---------------------

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A

∅

Ac

U

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none of these

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A

B

A'B'

B'A

The geometrical representation of a linear function is

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Circle

Parabola

Straight lie

None of these

Which of the following sets in infinite

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The set of students of your class

The set of all schools in Pakistan

The set of natural numbers between 3 and 10

The set of rational numbers between 3 and 10

If f:A→B is an injective function and second elements of no two of its ordered pairs are equal, then f is called

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1-1 and onto

Bijective

1-1 and into

None of these

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A

A'

U

None of these

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A - B = ______

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Multiplicative inverse of 0 is

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0

1

+-1

Does not exist

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To each element of a group there corresponds ______ inverse element

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Two

One

No

Three

Identity w.r.t intersection in a power set of any set is

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∅

Set itself

Singleton set

{0}

If B⊆ A, then complement of B in A is = -----------------------

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A-B

A∩B

B-A

A∪B

{0} is a

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Empty set

Singleton set

Zero set

Null Set

The graph of a quadratic function is

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Circle

Straight line

Parabola

Triangle

Φset is the ______ of all sets?

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Subset

Union

Universal

Intersection

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Mathematics ECAT Pre Engineering Chapter 2 Set, Functions and Groups Online Test MCQs With Answers

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