Question # 1

Which symbolic notation represent unary operation ?

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-

∨

∧

⇔

The function f{(x, y) | y = ax²+ bx + c} is

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One-one function

Constant function

Onto function

Quadratic function

Group of none-singular matrices under multiplication is

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None-Abelian group

Semi group

Abelian group

None of these

If P is a proposition then its negative is denoted by

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a-b=ab

ab=a

a+b=ab

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If a set S contains "n" elements then P (S) has ...... number of elements

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2ⁿ

2²ⁿ

2 . n

n²

Onto function is also called

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Binjective function

Injective function

Surjechive function

None of these

Every subset of a finite set is

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Disjoint

Null

Finite

Infinite

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

The set of even prime numbers is

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(2,4,6,8,10}

{2,4,6,8,10,12}

{1,3,5,7,9}

{2}

The number of subset of {0} is

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1

2

3

None

(A∩Bc)c= -------------------------

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Ac∪Bc

Ac∪B

Ac∩B

None of these

The set which has no proper subset is

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{0}

{}

{∅}

None of these

The set {x|x∈N∧x-4=0} in tabular form is

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{-4}

{0}

{}

None of these

The negation of a number

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a relation

a function

unary operation

binary operation

If T = {2,4,6,8,10,12}, then

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T = (First six natural numbers)

T = (First six odd numbers)

T = (First six real numbers)

T = ( First six even numbers)

For any set X, X∪X is

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X

X'

Φ

Universal Set

The set {-1,1} is closed under the binary operation of

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Addition

Multiplication

Subtraction

Division

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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ECAT Mathematics Chapter 23 MCQs With Answers

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