Question # 1

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A function in which the second elements of the order pairs are distinct is called

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Onto function

One-one function

Identity function

Inverse function

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

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1

2

3

4

The set of complex numbers forms

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Commutative group w.r.t addition

Commutative group w.r.t multiplication

Commutative group w.r.t division

Non commutative group w.r.t addition

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A finite set

An infinite set

An empty set

None of these

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None of these

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none of these

The set of whole numbers is subset of

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The set on integers

The set of natural numbers

{1, 3, 5, 7, ....}

The set of prime numbers

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

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2ⁿ

2²ⁿ

2 . n

n²

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

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If 0 = {1,3,5.......}, then n (0) =

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99

odd integers

Even numbers

Infinite

The identity element of a set X with respect to intersection in P(x) is

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X

Does not exist

∅

None of these

What is the number of elements of the power set of { }

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0

1

2

3

A statement which is either true or false is called

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Induction

Deduction

Propositicon

Logic

Which of the following sets in infinite

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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 set of the first elements of the orders pairs forming a relation is called its

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Relation in B

Range

Domain

Relation In A

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A

B

A'B'

B'A

If A ⊆ B then A ∪ B is

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A

B

A'

A ∩B

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1/x

-x

2x

0.5 x

The set X is

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Proper Subset of X

Not A subset of X

Improper Subset of X

None of these

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

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True

False

Fallacious

Some times true

Z is the set of integers, (z, *) is a group with a * b = a + b + 1, a, b∈G. then inverse of a is

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-a

a + 1

-2 -a

None of these

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

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One-one function

Constant function

Onto function

Quadratic function

If A = {2m/m³= 8 , m€ Z} then A =

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{1,8,27}

{4}

(2,4,6}

{2,16,54}

The graph of a quadratic function is

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Circle

Ellipse

Parabola

Hexagon

The set {Z\{0}} is group w.r.t

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Addition

Multiplication

Division

Subtraction

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

Identity w.r.t intersection in a power set of any set is

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∅

Set itself

Singleton set

{0}

If #n = (n-5)²+ 5, then find #3 x #4.

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54

12

4

9

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ECAT Pre General Science Mathematics Chapter 2 Set, Functions and Groups Online Test MCQs With Answers

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