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Welcome to the Sets and Functions MCQs Page

Dive deep into the fascinating world of Sets and Functions with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Sets and Functions, a crucial aspect of Discrete Mathematics. In this section, you will encounter a diverse range of MCQs that cover various aspects of Sets and Functions, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Discrete Mathematics.

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Check out the MCQs below to embark on an enriching journey through Sets and Functions. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Discrete Mathematics.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Sets and Functions. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Sets and Functions MCQs | Page 4 of 15

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Q31.
The difference of {1, 2, 3} and {1, 2, 5} is the set ____________

a.

{1}

b.

{5}

c.

{3}

d.

{2}

Discuss
Answer: (c).{3}
Q32.
The complement of the set A is _____________

a.

A – B

b.

U – A

c.

A – U

d.

B – A

Discuss
Answer: (b).U – A
Q33.
The bit string for the set {2, 4, 6, 8, 10} (with universal set of natural numbers less than or equal to 10) is ____________________

a.

0101010101

b.

1010101010

c.

1010010101

d.

0010010101

Discuss
Answer: (a).0101010101
Q34.
Let Ai = {i, i+1, i+2, …..}. Then set {n, n+1, n+2, n+3, …..} is the _________ of the set Ai.

a.

Union

b.

Intersection

c.

Set Difference

d.

Disjoint

Discuss
Answer: (b).Intersection
Q35.
The bit strings for the sets are 1111100000 and 1010101010. The union of these sets is ___________

a.

1010100000

b.

1010101101

c.

1111111100

d.

1111101010

Discuss
Answer: (d).1111101010
Q36.
The set difference of the set A with null set is __________

a.

A

b.

null

c.

U

d.

B

Discuss
Answer: (a).A
Q37.
Let the set A is {1, 2, 3} and B is {2, 3, 4}. Then the number of elements in A U B is?

a.

4

b.

5

c.

6

d.

7

Discuss
Answer: (a).4
Q38.
Let the set A is {1, 2, 3} and B is { 2, 3, 4}. Then number of elements in A ∩ B is?

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (b).2
Q39.
Let the set A is {1, 2, 3} and B is {2, 3, 4}. Then the set A – B is?

a.

{1, -4}

b.

{1, 2, 3}

c.

{1}

d.

{2, 3}

Discuss
Answer: (c).{1}
Q40.
In which of the following sets A – B is equal to B – A?

a.

A = {1, 2, 3}, B = {2, 3, 4}

b.

A = {1, 2, 3}, B = {1, 2, 3, 4}

c.

A = {1, 2, 3}, B = {2, 3, 1}

d.

A = {1, 2, 3, 4, 5, 6}, B = {2, 3, 4, 5, 1}

Discuss
Answer: (c).A = {1, 2, 3}, B = {2, 3, 1}
Page 4 of 15

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