Welcome to the Sequences,Sums and Matrices MCQs Page

Dive deep into the fascinating world of Sequences,Sums and Matrices with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Sequences,Sums and Matrices, a crucial aspect of Discrete Mathematics. In this section, you will encounter a diverse range of MCQs that cover various aspects of Sequences,Sums and Matrices, 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.

Check out the MCQs below to embark on an enriching journey through Sequences,Sums and Matrices. 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 Sequences,Sums and Matrices. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Sequences,Sums and Matrices MCQs | Page 11 of 12

Explore more Topics under Discrete Mathematics

01

Logics and Proofs

02

Sets and Functions

03

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04

Number Theory and Cryptography

05

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06

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07

Discrete Probability

08

Relations

09

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10

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11

Boolean Algebra and Modeling Computations

12

Group Theory

Q101.

For a matrix A, B and identity matrix I, if a matrix AB=I=BA then?

B is inverse of A

A is inverse of B

A⁻¹ = B, B⁻¹ = A

All of the mentioned

Discuss

Answer: (d).All of the mentioned

Q102.

For matrix A, (A₃) = I, A⁻¹ is equals to _________

A²

A⁻²

Can’t say

None of the mentioned

Discuss

Answer: (a).A²

Q103.

Let A = [0 1 0 0 ], A⁻¹ is equal to _________

Null matrix

Identity matrix

Does not exist

None of the mentioned

Discuss

Answer: (c).Does not exist

Q104.

If A is an invertible square matrix then _________

(Aᵀ)⁻¹ = (A⁻¹)ᵀ

(Aᵀ)ᵀ = (A⁻¹)ᵀ

(Aᵀ)⁻¹ = (A⁻¹)⁻¹

None of the mentioned

Discuss

Answer: (a).(Aᵀ)⁻¹ = (A⁻¹)ᵀ

Q105.

If matrix A, B and C are invertible matrix of same order then (ABC)⁻¹ = _________

CBA

C⁻¹ B⁻¹ A⁻¹

Cᵀ B⁻¹ Aᵀ

None of the mentioned

Discuss

Answer: (b).C⁻¹ B⁻¹ A⁻¹

Q106.

If A is non singular matrix then AB = AC implies B = C.

True

False

May be True or False

Can't say

Discuss

Answer: (a).True

Q107.

For a matrix A of order n, the det(adj(A)) = (det(A))ⁿ, where adj() is adjoint of matrix.

True

False

May be True or False

Can't say

Discuss

Answer: (b).False

Q108.

For a non-singular matrix A, A⁻¹ is equal to _________

(adj(A))/det(A)

det(A)*(adj(A))

det(A)*A

none of the mentioned

Discuss

Answer: (a).(adj(A))/det(A)

Q109.

Let I₃ be the Identity matrix of order 3 then (I₃)⁻¹ is equal to _________

3I₃

I₃

None of the mentioned

Discuss

Answer: (c).I₃

Q110.

If for a square matrix A(non-singular) and B, null matrix O, AB = O then?

B is a null matrix

B is a non singular matrix

B is a identity matrix

All of the mentioned

Discuss

Answer: (a).B is a null matrix

Page 11 of 12

Welcome to the Sequences,Sums and Matrices MCQs Page

Sequences,Sums and Matrices MCQs | Page 11 of 12

Explore more Topics under Discrete Mathematics

Logics and Proofs

Sets and Functions

Algorithms

Number Theory and Cryptography

Induction and Recursion

Counting Theory

Discrete Probability

Relations

Graphs and Graphs Properties

Tree Properties

Boolean Algebra and Modeling Computations

Group Theory

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