Question # 1

Which of the following has the same value as i113

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i

-1

-i

1

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

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A = C

A = B

B = C

None of these

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Addition

Subtraction

Multiplication

None of these

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A

A'

U

None of these

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

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1

-1

+-1

0

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

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

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A

A'

U

None of these

Which of the following sets in infinite

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The set of students of your class

The set of all schools in Pakistan

The set of natural numbers between 3 and 10

The set of rational numbers between 3 and 10

Z is a group under

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Subtraction

Multiplication

Addition

None of these

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An empty set

Universal set

A singleton set

None of these

Which of the following is the subset of all sets

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Φ

{1,2,3}

{Φ}

{0}

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

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1

-1

±1

0

Does not exist

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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The function whose range consists of just one element is called

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One-One Function

Identity Function

Onto Function

Constant Function

If A = {x/x is a positive integer and 4≤x<23}, then A=

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{1,2,3,4,5,6,7}

{4,5,6...........22}

{1,2,3,.........23}

{1,2,3,4,5}

The set R is ______ w.r.t subtraction

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Not a group

A group

No conclusion drawn

Non commutative group

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 set { {a, b} } is

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Infinite set

Singleton set

Two points set

Empty set

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