Question # 1

The multiplicative inverse of -1 in the set {1-, 1} is

Choose an answer

1

-1

+-1

0

Choose an answer

None of these

If A and B are two sets then any subset R of A x B is called

Choose an answer

relation on A

relation on B

relation from A to B

relation from B to A

Choose an answer

If x = 1/x for x ∈ R then the value of x is

Choose an answer

±1

0

2

4

The set {1,-1,i,-i}

Choose an answer

Form a group w.r.t addition

Form a group w.r.t multiplication

Does not form a group w.r.t multiplication

Not closed under multiplication

If we have a statement "if p then q" then q is called

Choose an answer

Conclusion

Implication

Unknown

Hypothesis

Multiplicative inverse of "1" is

Choose an answer

+- 1

0

1

None of these

If D = {a} , the P(D) =

Choose an answer

{a}

∅

{∅,{a}}

{∅,a}

Choose an answer

A

A'

U

None of these

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

Choose an answer

domain

range

relation

function

Given X,Y are any two sets such that number of elements in set X = 28, number of elements in set Y = 28, and number of elements in set X∪Y = 54, then number of elements in set X ∩ Y =

Choose an answer

4

3

2

1

The sets {1, 2, 4} and {4, 6, 8, 10} are

Choose an answer

Equal sets

Equivalent sets

Disjoint sets

Over lapping sets

Choose an answer

If B-A≠φ , then n(B-A) is equal to

Choose an answer

n(a)+n(c)

n(c)-n(a)

n(a)-n(c)

None of these

A function whose range is just one element is called

Choose an answer

One-one function

Constant function

Onto function

Identity function

Given X.Y are any two sets such that number of elements in X = 18, number of elements in set Y = 24,and number of elements in set X∪ Y =40,then number of elements in set x∩ Y =

Choose an answer

3

1

2

4

The set of integers is a subset of

Choose an answer

The set of natural numbers

The set of whole numbers

The set of prime numbers

The set of rational numbers

Choose an answer

The multiplicative inverse of x such that x = 0 is

Choose an answer

-x

Does not exist

1/x

±1

Two sets A and B are said to be disjoint if

Choose an answer

The set R is ______ w.r.t subtraction

Choose an answer

Not a group

A group

No conclusion drawn

Non commutative group

If A is a subset of B and B contains at least one element which is not an element of A, then A is said to be

Choose an answer

Improper subset of B

Super set of B

Proper subset of B

None of these

Under multiplication, solution set of is

Choose an answer

Groupoid

Abelian group

Semi group

All of these

To each element of a group there corresponds ______ inverse element

Choose an answer

Two

One

No

Three

The set { {a, b} } is

Choose an answer

Infinite set

Singleton set

Two points set

Empty set

The geometrical representation of a linear function is

Choose an answer

Circle

Parabola

Straight lie

None of these

A conditional is regarded as false only when the antecedent is true and consequent is

Choose an answer

True

False

Known

Unknown

The set {{a,b}} is

Choose an answer

Infinite set

Singleton set

Two points set

None

Onto function is also called

Choose an answer

Binjective function

Injective function

Surjechive function

None of these

The set of real numbers is a subset of

Choose an answer

The set of natural numbers

The set of rational numbers

The set of integers

The set of complex numbers

More Classes

Other Links

Mathematics ECAT Pre Engineering Chapter 2 Set, Functions and Groups Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer