Question # 1

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The set {Z\ {0} } is group w.r.t

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Addition

Multiplication

Division

Subtraction

If a set S contains "n" elements then P (S) has ...... number of elements

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2ⁿ

2²ⁿ

2 . n

n²

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A

B

A'

None of these

{0} is a

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Empty set

Singleton set

Zero set

Null Set

The graph of a linear function is

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a circle

triangle

a straight line

none of these

If A is a set then any subset R of A x A is called

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relation on A

relation on B

relation from A to B

relation from B to A

Every set is an improper subset of

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Empty set

Equivalent set

Itself

Singleton set

If A ⊆ B then A ∪ B is

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A

B

A'

A ∩B

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P∉ A means

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Pis subset of A

Pis an element of A

P does not belongs to A

A does not element of P

The number of different ways of describing a set is

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One

Two

Three

Four

The sets {1, 2, 4} and {4, 6, 8, 10} are

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Equal sets

Equivalent sets

Disjoint sets

Over lapping sets

The set of the first elements of the ordered pairs forming a relation is called its

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Function on B

Range

Domain

A into B

A∪(A∪B)= --------------------

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B

A

A∪B

None of these

(A∩Bc)c= -------------------------

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Ac∪Bc

Ac∪B

Ac∩B

None of these

The identity element of a set X with respect to intersection in P(x) is

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X

Does not exist

∅

None of these

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Biconditional

Implication

Antecedent

Hypothesis

A conditional is regarded as false only when the antecedent is true and consequent is

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True

False

Known

Unknown

Power set of X i.e P(X)..........under the binary operation of union U

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Forms a group

Does not form a group

Has no identity element

Infinite set although X is infinite

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ECAT Mathematics Chapter 23 MCQs With Answers

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