Mathematics MCQs Chapter 2 - LearnoSpot by PLS

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Created on January 19, 2022

Ch 2 Sets, Functions and Groups

1 / 31

The graph of linear function is :

triangle

Circle

straight line

parabola

2 / 31

Which of the following is true:

? ⊂ ?

all of these

? ⊂ ?

3 / 31

A set is a collection of objects which are

identical

Well defined

Well defined and distinct

not defined

4 / 31

The set of odd numbers between 1 and 9 are

{1,3,5,7,9}

{1,3,5,7}

{3,5,7,9}

{3,5,7}

5 / 31

Squaring a number is a:

binary operation

Function

relation

Unary operation

6 / 31

Total number of subsets that can be formed from the set {?, ?, ?} is

7 / 31

In a proposition if ? → ? ???? ? → ? is called

None

converse of ? → ?

contrapositive of ? → ?

Inverse of ? → ?

8 / 31

Inverse of any element of a group is:

unique

none of these

has many inverses

Not unique

9 / 31

Identity element in (?, . ) is:

(0,0)

(1,1)

(1,0)

(0,1)

10 / 31

Every recurring non terminating decimal represents

?′

None

11 / 31

A diagram which represents a set is called______

Argand

Plane

Venn’s

None

12 / 31

If ? ⊆ ? then ?(? ∩ ?) =

?(?) + ?(?)

?(?)

?(?). ?(?)

13 / 31

Every function is:

Relation

inverse function

one to one

none of these

14 / 31

The number of all subsets of a set having three elements is:

15 / 31

Which of the following is not a binary operation :

√

–

16 / 31

17 / 31

The symbol which is used to denote negation of a proposition is

∧

∨

→

18 / 31

A diagram which represents a set is called______

Venn’s

None

Plane

Argand

19 / 31

The graph of linear function is :

straight line

triangle

Circle

parabola

20 / 31

Squaring a number is a:

Function

Unary operation

relation

binary operation

21 / 31

The set of odd numbers between 1 and 9 are

{1,3,5,7}

{3,5,7,9}

{1,3,5,7,9}

{3,5,7}

22 / 31

. Truth set of a tautology is

False

Universal set

True

23 / 31

A compound proposition which is always neither true nor false is called:

absurdity

Tautology

contradiction

contingency

24 / 31

The number of all subsets of a set having three elements is:

25 / 31

A compound proposition which is always wrong is called:

absurdity

Tautology

contradiction

contingency

26 / 31

An onto function is also called:

Bijective

Inverse

Surjective

Injective

27 / 31

A set is a collection of objects which are

not defined

Well defined

Well defined and distinct

identical

28 / 31

A compound proposition which is always true is called:

Tautology

absurdity

contradiction

contingency

29 / 31

Inverse of any element of a group is:

unique

Not unique

has many inverses

none of these

30 / 31

Inverse of a line is :

not defined

A line

a parabola

a point

31 / 31

Every function is:

none of these

inverse function

one to one

Relation

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