Question # 1

A set having only one element is called

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An empty set

Universal set

A singleton set

A power set

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

If B ={x/x€ Z ^ - 3 < x < 6}, then n (B) =

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5

{-3,-2,-1,0,1,2,3,4,5,6}

8

9

If A and B are two sets then any subset R of B x A is called

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relation on A

relation on B

relation from A to B

relation from B to A

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

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domain

range

relation

function

If A = {x/x is a positive integer and 4≤x<23}, then A=

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{1,2,3,4,5,6,7}

{4,5,6...........22}

{1,2,3,.........23}

{1,2,3,4,5}

Φ set is the _______ of all sets

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Subset

Union

Universal

Intersection

The set X is

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Proper Subset of X

Not A subset of X

Improper Subset of X

None of these

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Conclusion

Implication

Antecedent

Hypothesis

If the intersection of two sets is non-empty, but either is a subset of other are called

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Disjoint sets

Over lapping

Equal sets

None of these

If f:A→B is an injective function and second elements of no two of its ordered pairs are equal, then f is called

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1-1 and onto

Bijective

1-1 and into

None of these

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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Natural numbers

Whole numbers

Integers

Rational numbers

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

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1

-1

+-1

0

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A

A'

U

U'

Which conjunction is not true ?

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If E = { } , then P(E)

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∅

{ }

{(2),(4),(6)....}

(∅)

The set { {a, b} } is

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Infinite set

Singleton set

Two points set

Empty set

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The graph of a quadratic function is

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Circle

Straight line

Parabola

Triangle

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ECAT Mathematics Chapter 23 MCQs With Answers

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