Question # 1

If P is a proposition then its negative is denoted by

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The set {1, -1, i, -i}

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Form a group w.r.t addition

Form a group w.r.t multiplication

Does not form a group w.r.t multiplication

Not closed under multiplication

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

Decimal part of irrational number is

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Terminating

Repeating only

Neither repeating nor terminating

Repeating and terminating

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

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Two

One

No

Three

Write down the power set of {9, 11}

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The total number of subsets that can be formed out of the set {a, b, c} is

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1

4

8

12

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Biconditional

Implication

Antecedent

Hypothesis

For any set X, X∪X is

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X

X'

Φ

Universal Set

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square root function

identity function

linear function

quadratic function

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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none of these

If z1 = 2 + 6i and z2 = 3 + 7i then which expression defines the product of z1 and z2

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36 +(-32)i

-36+32i

6+(-11)i

0, +(-12)i

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a constant function

linear function

quadratic funtion

none of these

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

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4

3

2

1

For a set A, A∪Ac= ---------------------

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A

∅

Ac

U

If B⊆ A, then complement of B in A is = -----------------------

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A-B

A∩B

B-A

A∪B

The sets {1, 2, 4} and {4, 6, 8, 10} are

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Equal sets

Equivalent sets

Disjoint sets

Over lapping sets

If n(X) = 18, n(X∩Y) = 7, n(X∪ Y) = 40 then n(Y) =

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1

12

5

29

The graph of a linear function is

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a circle

triangle

a straight line

none of these

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A = C

A = B

B = C

None of these

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

In set builder notation the set {0, 1, 2, ............, 100} can be written as

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

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0

1

2

3

The set { {a,b} } is

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Infinite set

Singleton set

Two points set

Empty set

0 is a symbol of

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singleton set

Empty set

Equivalent set

Infinite set

Φ set is the _______ of all sets

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Subset

Union

Universal

Intersection

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

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