Question # 1

(A ∩ B)c =

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A∩ B

(A ∪ B)c

Ac∪Bc

Φ

A monoid (G, *) is said to be group if

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have identity element

is commutative

have inverse of each element

None of these

The set of real numbers is a subset of

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The set of natural numbers

The set of rational numbers

The set of integers

The set of complex 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

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 =

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3

1

2

4

If A = {2m/m³= 8 , m€ Z} then A =

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{1,8,27}

{4}

(2,4,6}

{2,16,54}

For any set B, BUB' is

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Is set B

Set B'

Universal set

None of these

If there is one-one correspondence between A and B, then we write.

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A = B

A⊆ B

A⊇ B

A ∼ B

For a set A, A∪Ac= ---------------------

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A

∅

Ac

U

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

The negation of a number

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a relation

a function

unary operation

binary operation

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A

A'

U

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4

3

2

1

If A⊆ B, and B is a finite set, then

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n (a) < n(B)

n(B)<(A)

n(A)≤ n (B)

n(A)≥ n(B)

The graph of a quadratic function is

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Circle

Ellipse

Parabola

Hexagon

The set {-1, 1} is closed under the binary operation of

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Addition

Multiplication

Subtraction

Division

A set having only one element is called

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An empty set

Universal set

A singleton set

A power set

The set {x|x∈N∧x-4=0} in tabular form is

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{-4}

{0}

{}

None of these

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None of these

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A = C

A = B

B = C

None of these

The set (Z, +) forms a group

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Forms a group w.r.t. addition

Non commutative group w.r.t. multiplication

Forms a group w.r.t multiplication

Doesn't form a group

The set X is

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Proper Subset of X

Not A subset of X

Improper Subset of X

None of these

For any set B,B∪B' is

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Is set B

Set B'

Universal set

If A ⊆ B then A ∪ B is

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A

B

A'

A ∩B

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

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1

-1

±1

0

Does not exist

If A∩B=B, then n(A∩B) is equal to

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n(a)

n(a)+n(c)

n(c)

None of these

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

{x|x∈R∧x≠x} is a

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Infinite set

Null set

Finite set

None of these

G = {e, a, b, c} is an Abelian group with e as identity element. The order of the other elements are

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2, 2, 2

3, 3, 3

2, 2, 4

2, 3, 4

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A

A'

U

None of these

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