Question # 1

Which symbolic notation represent unary operation ?

Choose an answer

-

∨

∧

⇔

The set (Z,+) forms a group

Choose an answer

Forms a group w.r.t addition

Non commutative group w.r.t multiplication

Forms a group w.r.t multiplication

Doesn't form a group

If A and B are two sets then intersection of A and B is denoted by

Choose an answer

The set of rational numbers is subset of

Choose an answer

The set of natural numbers

The set of real numbers

The set of integers

The set of whole numbers

The set of natural is a semi group w.r.t

Choose an answer

Addition

Division

Subtraction

None of these

The negation of given number is a

Choose an answer

Binary operation

Unary operation

Relation

None of these

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

Choose an answer

2ⁿ

2²ⁿ

2 . n

n²

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

Choose an answer

{-4}

{0}

{}

None of these

A conditional is regarded as false only when the antecedent is true and consequent is

Choose an answer

True

False

Known

Unknown

Choose an answer

a constant function

linear function

quadratic funtion

none of these

If a = {2m/2m < 9 ,m€ p} , the (n A) =

Choose an answer

{2,3,4,5,6,7,8}

{2,4,6,8............16}

{ 4, 6}

{2,3,5,7}

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

Choose an answer

2n

n²

n/2

2ⁿ

The set of all positive even integers is

Choose an answer

Not a group

A group w.r.t. subtraction

A group w.r.t. division

A group w.r.t. multiplication

What is the number of elements of the power set of {0, 1}

Choose an answer

1

2

3

4

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

Choose an answer

Addition

Multiplication

Subtraction

Division

Which of the following sets in infinite

Choose an answer

The set of students of your class

The set of all schools in Pakistan

The set of natural numbers between 3 and 10

The set of rational numbers between 3 and 10

The contra positive of p → q is

Choose an answer

q → p

~q→~q

~p→~q

None of these

Φset is the ______ of all sets?

Choose an answer

Subset

Union

Universal

Intersection

Choose an answer

An empty set

Universal set

A singleton set

None of these

Choose an answer

A

B

U

None of these

If S = {3,6,9,12.......}, then

Choose an answer

S = Four multiples of 3

S = Set of even numbers

S = Set of prime numbers

S = All multiples of 3

More Classes

Other Links

ECAT Mathematics Chapter 23 MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer