Question # 1

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

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True

False

Fallacious

Some times true

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Singleton set

A set with two points

Empty set

None of these

{x : xε Z and x < 1} is

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Singleton set

A set with two points

Empty set

None of these

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If A∩B=B, then n(A∩B) is equal to

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n(a)

n(a)+n(c)

n(c)

None of these

The function whose range consists of just one element is called

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One-One Function

Identity Function

Onto Function

Constant Function

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

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Two

One

No

Three

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none of these

The graph of a quadratic function is

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Circle

Ellipse

Parabola

Hexagon

{x|x∈R∧x≠x} is a

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Infinite set

Null set

Finite set

None of these

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 finite set

An infinite set

An empty set

None of these

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

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domain

range

relation

function

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The negation of a number

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a relation

a function

unary operation

binary operation

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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 multiplicative inverse of x such that x = 0 is

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-x

Does not exist

1/x

±1

Additive inverse of -a -b is

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a

-a + b

a - b

a + b

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An empty set

Universal set

A singleton set

None of these

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Other Links

ECAT Mathematics Chapter 23 MCQs With Answers

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