Question # 1

The complement of set A relative to universal set U is the set

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Z is a group under

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Subtraction

Multiplication

Addition

None of these

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The many subset can be formed from the set {a,b,c,d}

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8

4

12

16

The set { {a,b} } is

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Infinite set

Singleton set

Two points set

Empty set

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none of these

The set of rational numbers is subset of

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The set of natural numbers

The set of real numbers

The set of integers

The set of whole numbers

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a-b=ab

ab=a

a+b=ab

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A onto B

both a & c

A into B

none of these

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

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1

12

5

29

If P = {x/x = p/q where p,q∈ Z and q≠ 0}, then P is the set of

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Irrational numbers

Even numbers

Rational numbers

Whole numbers

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A

A'

U

None of these

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

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

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∅

Set itself

Singleton set

{0}

If n(A) = n then n(P(A)) is

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2n

n²

n/2

2ⁿ

The graph of a quadratic function is

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Circle

Straight line

Parabola

Triangle

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A

A'

U

U'

Which of the following has the same value as i113

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i

-1

-i

1

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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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ECAT Mathematics Chapter 23 MCQs With Answers

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