Question # 1

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

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Function on B

Range

Domain

A into B

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

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none of these

If a = {2m/2m < 9 ,m€ p} , the (n A) =

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{2,3,4,5,6,7,8}

{2,4,6,8............16}

{ 4, 6}

{2,3,5,7}

Empty set is

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Not the member of real numbers

Infinite set

Finite set

Not subset of every set

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None of these

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A = B

B = C

A = C

None of these

A∪(A∪B)= --------------------

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B

A

A∪B

None of these

The set of natural is a semi group w.r.t

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Addition

Division

Subtraction

None of these

If we have a statement "if p then q" then q is called

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Conclusion

Implication

Unknown

Hypothesis

Multiplicative inverse of "1" is

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0

-1

1

{0, 1}

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Conclusion

Implication

Antecedent

Hypothesis

To each element of a group there corresponds ______ inverse element

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Two

One

No

Three

Under multiplication, solution set of is

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Groupoid

Abelian group

Semi group

All of these

The set R is ______ w.r.t subtraction

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Not a group

A group

No conclusion drawn

Non commutative group

If n(X) = 18, n(X∩Y) = 7, n(X∪ Y) = 40 then n(Y) =

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1

12

5

29

If A⊆ B, and B is a finite set, then

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n (a) < n(B)

n(B)<(A)

n(A)≤ n (B)

n(A)≥ n(B)

A function whose range is just one elements is called

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One-one function

Constant function

Onto function

Identity function

If C={p/p < 18, p is a prime number}, then C =

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{2,3,4,.........17}

{2,4,6,8................16}

{1,3,5,7,9,11,13,15,17}

{3,6,9,12,15}

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A

A'

U

None of these

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

Write down the power set of {9, 11}

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A conditional "if p then q" is denoted by

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square root function

identity function

linear function

quadratic function

A = B if

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A is equivalent to B

{x|x∈R∧x≠x} is a

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Infinite set

Null set

Finite set

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

If p and q are two statements then their biconditional 'p if q' is denoted by

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4

3

2

1

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

Which of the following has the same value as i113

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i

-1

-i

1

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

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