Question # 1

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A

A'

U

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

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Addition

Multiplication

Division

Subtraction

Which of the following is the definition of singleton

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The objects in a set

A set having no element

A set having no subset

None of these

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n(A)

n(B)

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 {x|x∈N∧x-4=0} in tabular form is

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{-4}

{0}

{}

None of these

The set of months in a year beginning with S.

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{September, October, November}

Singleton set

Null set

Empty set

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1/x

-x

2x

0.5 x

The set { {a, b} } is

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Infinite set

Singleton set

Two points set

Empty set

Under multiplication, solution set of is

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Groupoid

Abelian group

Semi group

All of these

If A = {2m/m³= 8 , m€ Z} then A =

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{1,8,27}

{4}

(2,4,6}

{2,16,54}

Z is a group under

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Subtraction

Multiplication

Addition

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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A

A'

U

None of these

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

If z1 = 2 + 6i and z2 = 3 + 7i then which expression defines the product of z1 and z2

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36 +(-32)i

-36+32i

6+(-11)i

0, +(-12)i

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Identity w.r.t intersection in a power set of any set is

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∅

Set itself

Singleton set

{0}

{0} is a

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Empty set

Singleton set

Zero set

Null Set

If A ⊆ B then A ∪ B is

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A

B

A'

A ∩B

{1, 2, 3, 4,.....} is set of ______

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Natural numbers

Whole numbers

Integers

Rational numbers

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

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1

-1

0

Does not exist

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

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0

1

2

3

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

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Biconditional

Implication

Antecedent

Hypothesis

The set { {a,b} } is

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Infinite set

Singleton set

Two points set

Empty set

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A

A'

U

A A'

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

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(A∪B)∪C= --------------------------

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A∩B(B∪C)

A∪(B∪C)

A∪(B∩C)

None of these

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ECAT Pre General Science Mathematics Chapter 2 Set, Functions and Groups Online Test MCQs With Answers

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