Question # 1

Which conjunction is not true ?

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

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relation on A

relation on B

relation from A to B

relation from B to A

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

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True

False

Known

Unknown

Which of the following is the subset of all sets?

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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

What is the number of elements of the power set of {0, 1}

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1

2

3

4

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

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 {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

Power set of difference set N-W is

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Empty set

Infinite set

Singleton set

{0,∅}

The set { {a,b} } is

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Infinite set

Singleton set

Two points set

Empty set

Two sets A and B are said to be disjoint if

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A = B

B = C

A = C

None of these

If #n = (n-5)²+ 5, then find #3 x #4.

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54

12

4

9

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A

A'

U

U'

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

If the intersection of two sets is non-empty, but either is a subset of other are called

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Disjoint sets

Over lapping

Equal sets

None of these

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The number of subsets of B = {1,2,3,4,5}

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10

32

16

5

A conditional "if p then q" is denoted by

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If T = {2,4,6,8,10,12}, then

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T = (First six natural numbers)

T = (First six odd numbers)

T = (First six real numbers)

T = ( First six even numbers)

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1

12

5

29

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

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Improper subset of B

Super set of B

Proper subset of B

None of these

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Evert element of A is in B

Every element of B is in A

Every element of A is in B'

Every element of A is in A

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

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domain

range

relation

function

To each element of a group there corresponds ______ inverse element

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Two

One

No

Three

The negation of given number is a

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Binary operation

Unary operation

Relation

None of these

(A∪B)∪C= --------------------------

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A∩B(B∪C)

A∪(B∪C)

A∪(B∩C)

None of these

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 (Z, +) forms a group

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Forms a group w.r.t addition

Forms a group w.r.t multiplication

Non commutative group w.r.t multiplication

Doesn't form a group

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none of these

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