Question # 1

Multiplicative inverse of 0 is

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0

1

+-1

Does not exist

For any set B, BUB' is

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Is set B

Set B'

Universal set

None of these

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

If S = {3,6,9,12.......}, then

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S = Four multiples of 3

S = Set of even numbers

S = Set of prime numbers

S = All multiples of 3

The set of months in a year beginning with S.

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{September, October, November}

Singleton set

Null set

Empty set

The geometrical representation of a linear function is

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Circle

Parabola

Straight lie

None of these

The number of different ways of describing a set is

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One

Two

Three

Four

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A conjunction of two statement p and q is true only if

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p is true

q is true

Both p and q are true

both p and q are false

{1, 2, 3} is _____

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an infinite set

A finite set

A singleton set

Universal set

Let A,B and C be any sets such that A∪B = A∪C and A∩ B = A∩ C then

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A = B

B = C

A≠ C

A ≠ B

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

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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

The set of integer is

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Finite group

A group w.r.t addition

A group w.r.t multiplication

Not a group

The identity elements with respect to subtraction is

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0

1

-1

Does not exist

For any two sets A and, A ⊆ B if

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x ∈ A ⇒ x ∈ B

x ∉ A ⇒ x ∉ B

x ∈ A ⇒ x ∉ B

None of these

The number of subsets of a set having three elements is

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4

6

8

none of these

{0} is a

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Empty set

Singleton set

Zero set

Null Set

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A

A'

U

A A'

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A = B

B = C

A = C

None of these

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Addition

Subtraction

Multiplication

None of these

Under multiplication, solution set of is

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Groupoid

Abelian group

Semi group

All of these

Power set of X i.e P(X)..........under the binary operation of union U

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Forms a group

Does not form a group

Has no identity element

Infinite set although X is infinite

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A

B

U

None of these

Multiplicative inverse of "1" is

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0

-1

1

{0, 1}

The set of complex numbers forms

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Commutative group w.r.t addition

Commutative group w.r.t multiplication

Commutative group w.r.t division

Non commutative group w.r.t addition

The set of all positive even integers is

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Not a group

A group w.r.t. subtraction

A group w.r.t. division

A group w.r.t. multiplication

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The set of whole numbers is subset of

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The set on integers

The set of natural numbers

{1, 3, 5, 7, ....}

The set of prime numbers

The set Q

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Forms a group under addition

Does not form a group

Contains no additive indentity

Contains no additive inverse

For any set X, X∪X is

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X

X'

Φ

Universal Set

If 0 = {1,3,5.......}, then n (0) =

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99

odd integers

Even numbers

Infinite

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