Question # 1

A statement which is either true or false is called

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Induction

Deduction

Propositicon

Logic

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

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True

False

Fallacious

Some times true

If B⊆ A, then complement of B in A is = -----------------------

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A-B

A∩B

B-A

A∪B

A function whose range is just one element is called

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One-one function

Constant function

Onto function

Identity function

If P is a proposition then its negative is denoted by

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A onto B

both a & c

A into B

none of these

Φ set is the _______ of all sets

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Subset

Union

Universal

Intersection

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

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

If S = {3,6,9,12.......}, then

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S = Four multiples of 3

S = Set of even numbers

S = Set of prime numbers

S = All multiples of 3

If A ⊆ B then A ∪ B is

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A

B

A'

A ∩B

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Addition

Multiplication

Division

Both addition and multiplication

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

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domain

range

relation

function

Decimal part of irrational number is

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Terminating

Repeating only

Neither repeating nor terminating

Repeating and terminating

To each element of a group there corresponds ............. inverse element

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Two

One

No

Three

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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A

A'

U

None of these

The geometrical representation of a linear function is

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Circle

Parabola

Straight lie

None of these

For any set X, X∪X is

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X

X'

Φ

Universal Set

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Natural numbers

Whole numbers

Integers

Rational numbers

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

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0

1

2

3

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

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Natural numbers

Whole numbers

Integers

Rational numbers

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

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Addition

Multiplication

Subtraction

Division

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The multiplicative inverse of x such that x = 0 is

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-x

does not exist

1/x

0

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A

B

A'B'

B'A

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Multiplicative inverse of 0 is

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0

1

+-1

Does not exist

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ECAT Mathematics Chapter 2 Set Function and Groups Online Test MCQs With Answers

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