Question # 1

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

{0} is a

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Empty set

Singleton set

Zero set

Null Set

A function whose range is just one elements is called

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One-one function

Constant function

Onto function

Identity function

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A

B

U

None of these

Group of none-singular matrices under multiplication is

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None-Abelian group

Semi group

Abelian group

None of these

The set { {a, b} } is

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Infinite set

Singleton set

Two points set

Empty set

A statement which is either true or false is called

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Induction

Deduction

Propositicon

Logic

The set R is ........w.r.t subtraction

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Not a group

A group

No conclusion drawn

Non commutative group

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Addition

Subtraction

Multiplication

None of these

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

The set of integers is a subset of

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The set of natural numbers

The set of whole numbers

The set of prime numbers

The set of rational numbers

Which symbolic notation represent unary operation ?

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-

∨

∧

⇔

What is the number of elements of the power set of {0, 1}

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1

2

3

4

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A = B

B = C

A = C

None of these

Z is the set of integers, (z, *) is a group with a * b = a + b + 1, a, b∈G. then inverse of a is

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-a

a + 1

-2 -a

None of these

The set of complex numbers forms

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Commutative group w.r.t addition

Commutative group w.r.t multiplication

Commutative group w.r.t division

Non commutative group w.r.t addition

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

U

None of these

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Every subset of a finite set is

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Disjoint

Null

Finite

Infinite

For any two sets A and, A ⊆ B if

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x ∈ A ⇒ x ∈ B

x ∉ A ⇒ x ∉ B

x ∈ A ⇒ x ∉ B

None of these

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ECAT Mathematics Chapter 23 MCQs With Answers

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