Question # 1

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injuctive as well as surjective

both onto and into

one - one and into

only (1 - 1)

N is closed with respect to ordinary

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addition

multiplication

addition and multiplication

division

Which of the following represent injuctive function

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The set of cartesian product A x B consists of

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Domain

Range

Binary relation

Ordered pair

If no two elements of ordered pairs of a function from A onto B are the same, then it is called

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surjective

injuctive

bijective

on to

Let A and B be two non-empty sets, then any subset of the cartesian product AxB is called a

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function

domain

range

binary relation

Extraction of square root of a given number is a

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unary operation

binary operation

group

inverse function

(a,b) (c,d) if and only if

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a = b and c =d

a = d and b = c

a = c and b = d

a - b = c - d

A relation a into B in which Domain is not equal to a, is called.

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Into function

on to function

None of these

Surjective

Negation of a given number is an example of

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Binary operation

group

unary operation

function

A semi-group having an identity is called a

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groupoid

non-commutative

abelian

monoid

If range of a function f is B, then the function is

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surjective

injuctive

bijective

into

Function is a special type of

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relation

ordered pairs

cartesian product

sets

Addition is not operation on

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Natural numbers

Even numbers

odd numbers

set of integers

Identity element, if it exists, is

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inverse

unique

commutative

associative

There will be no inverse if the function is

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one -to - one

One to many

onto

into

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bijective function

into function

onto function

surjective

If the number of elements in set A is n, and in set B is m, then the number of elements in AxB will

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n^m

mⁿ

m x n

m + n

A function∫ will have an inverse function if and only if it is a

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onto function

into function

Constant

one-one function

(a,b) = (c,d) if and only if

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a=b and c =d

a = d and b = c

a = c and b = d

a - b = c -d

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similar images

distinct images

similar range

option a and c

The set {E,0}, is closed under (ordinary)

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multiplication

addition

subtraction

division

The identity function is

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surjective

injuctive

bijective

into

A relation A into B in which Domain is not equal to A, is called

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into function

onto function

None of these

surjective

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Mathematics ECAT Pre Engineering Chapter 4 Functions and Groups Online Test MCQs With Answers

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