Question # 1

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

ax+by+c = 0, represent a

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circle

parabola

straight line

quadratic circle

The function denoted by 1/f called the

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Reciprocal function

Inverse function

Constant function

Reverse function

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

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Domain

Range

Function

Relation

A semi-group having an identity is called a

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groupoid

non-commutative

abelian

monoid

The identity function is

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surjective

injuctive

bijective

into

Addition is not operation on

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Natural numbers

Even numbers

odd numbers

set of integers

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

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Domain

range

function

relation

Which of the following represent injuctive function

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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

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

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surjective

injuctive

bijective

into

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injuctive as well as surjective

both onto and into

one - one and into

only (1 - 1)

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

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A

B

∅

r

N is closed with respect to ordinary

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addition

multiplication

addition and multiplication

division

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

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

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multiplication

addition

subtraction

division

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similar images

distinct images

similar range

option a and c

Which of the following notation defines AxB

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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

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

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