Question # 1

Which of the following represent injuctive function

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A semi-group having an identity is called a

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groupoid

non-commutative

abelian

monoid

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

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multiplication

addition

subtraction

division

Addition is not operation on

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Natural numbers

Even numbers

odd numbers

set of integers

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

(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 function y = mx+c is, called linear function, because

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it has only two variables

it has one varible

its graphs is straight line

its graphs is circle

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

Extraction of square root of a given number is a

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unary operation

binary operation

group

inverse function

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 graph of a constant line is

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vertical line

parabola

circle

horizontal line

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

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Domain

Range

Function

Relation

ax+by+c = 0, represent a

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circle

parabola

straight line

quadratic circle

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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

A function from A to B is called on-to function, if its range is

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A

B

A and B

neither A nor B

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bijective function

into function

onto function

surjective

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

The identity function is

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surjective

injuctive

bijective

into

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

Which of the following notation defines AxB

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Which of the following diagrams represent into 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

Function is a special type of

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relation

ordered pairs

cartesian product

sets

A function f from A to B can be written as

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Which of the following diagrams represent bijective function?

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The function denoted by 1/f called the

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Reciprocal function

Inverse function

Constant function

Reverse function

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

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