Question # 1

For any set X, X∪X is

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X

X'

Φ

Universal Set

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

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

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

Decimal part of irrational number is

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Terminating

Repeating only

Neither repeating nor terminating

Repeating and terminating

The graph of a quadratic function is

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Circle

Ellipse

Parabola

Hexagon

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Two sets A and B are said to be disjoint if

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Additive inverse of -a -b is

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a

-a + b

a - b

a + b

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none of these

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A

A'

U

A A'

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square root function

identity function

linear function

quadratic function

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Singleton set

A set with two points

Empty set

None of these

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Which of the following is the subset of all sets

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Φ

{1,2,3}

{Φ}

{0}

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If x = 1/x for x ∈ R then the value of x is

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±1

0

2

4

Empty set is

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Not the member of real numbers

Infinite set

Finite set

Not subset of every set

The geometrical representation of a linear function is

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Circle

Parabola

Straight lie

None of these

Which conjunction is not true ?

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

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Natural numbers

Whole numbers

Integers

Rational numbers

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ECAT Mathematics Chapter 23 MCQs With Answers

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