Question # 1

There will be no inverse if the function is

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one -to - one

One to many

onto

into

If A is non-empty set, any subset of AxA is called a relation in a

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A

B

D

r

Which of the following diagrams represent into function?

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Function is a special type of

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relation

ordered pairs

cartesian product

sets

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

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Domain

range

function

relation

arb mean

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a is related to b

b is related to a

a is reciprocal of b

a is not related to b

A semi-group having an identity is called a

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groupoid

non-commutative

abelian

monoid

Which of the following notation defines AxB

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

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domain

range

ordered paris

relation

Function is a special type of

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relation

ordered pairs

Cartesian product

Set

Extraction of square root of a given number is a

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unary operation

binary operation

group

inverse function

ax+by+c = 0 , represents a

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Circle

Parabola

Straight line

Quadratic circle

Such a function which is (1 -1) is called

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surjective

injuctive

bijective

into

(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

If no two elements of ordred pair of a function from A into B are equal, then it is called

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surjective

injuctive

bijective

on to

If A is non-empty set, any subset of A x A is called a relation in

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A

B

∅

r

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

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Domain

Range

Ordered paris

Relation

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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

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

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Function

Domain

Range

Binary relation

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

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multiplication

addition

subtraction

division

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

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Surjective

Injuctive

Bijective

on to

The extraction of a cube root of a given number is a

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Binary operation

Unary operation

group

multiplicative inverse

(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

The graph of a constant line is

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vertical line

parabola

circle

horizontal line

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ECAT Pre General Science Mathematics Chapter 4 Functions & Groups Online Test MCQs With Answers

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