Question # 1

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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 {x +iy / x, y ∈ Q} forms a group under the binary operation of

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Addition

Multiplication

Division

Both addition and multiplication

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

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

Φset is the ______ of all sets?

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Subset

Union

Universal

Intersection

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The number of subsets of a set having three elements is

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4

6

8

none of these

For any set B,B∪B' is

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Is set B

Set B'

Universal set

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4

3

2

1

The set of the first elements of the orders pairs forming a relation is called its

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Relation in B

Range

Domain

Relation In A

The set R is ______ w.r.t subtraction

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Not a group

A group

No conclusion drawn

Non commutative group

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An empty set

Universal set

A singleton set

None of these

The multiplicative inverse of x such that x = 0 is

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-x

does not exist

1/x

0

The set {Z\{0}} is group w.r.t

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Addition

Multiplication

Division

Subtraction

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1

12

5

29

The set of the first elements of the orders pairs forming a relations is called its

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Relation in B

Range

Domain

Relation in A

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

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The statement that a group can have more than one identity elements is

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True

False

Fallacious

Some times true

What is the number of elements of the power set of { }

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0

1

2

3

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ECAT Mathematics Chapter 23 MCQs With Answers

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