Daily Practice Problems Matrices

Question 1:

If A = , then is equal to [Level: Moderate]

(a)

(b)

(c)

(d) None of these

Question 2:

If A and B are two matrices such that AB = B and BA = A, then is equal to [Level: Moderate]

(a) AB

(b) A + B

(d) 3AB

Question 3:

Let P = . If A = , then |p| is [Level: Difficult]

(a)

(b)

(c)

(d)

Question 4:

If for the matrix, A = , , then the value of is [Level: Moderate]

(a) 4

(b) 2

(d) 1

Question 5:

If A is symmetric as well as skew-symmetric matrix, then A is [Level: Easy]

(a) triangular matrix

(b) null matrix

(d) identity matrix

Question 6:

If A = is symmetric, then x is equal to [Level: Easy]

(a) 2

(b) 3

(d) 5

Question 7:

Let A = and B = where a, b, c R. If AB = , then number of ordered triplets (a, b, c) is [Level: Difficult]

(a) 2

(b) 4

(d) 8

Question 8:

Let A = , such that . Then a value of is [Level: Moderate]

(a) 0

(b)

(c)

(d)

Question 9:

How many orders are possible for a matrix having 18 elements? [Level: Easy]

(a) 2

(b) 3

(d) 18

Question 10:

Let A + 2B = and 2A – B = . If Tr(A) denotes the sum of all diagonal elements of the matrix A, then Tr(A) – Tr(B) has value equal to [Level: Difficult]

(a) 0

(b) 2

(d) 1

Question 11:

If 3A = and , then = [Level: Moderate]

(a) 3

(b) 5

(d) 9

Question 12:

If A = , B = and , the value of a + b is [Level: Moderate]

(a) 4

(b) 5

(d) 7

Question 13:

Let X and Y be two arbitrary, 3 3 non-zero, skew-symmetric matrices and Z be an arbitrary 3 3, non-zero, symmetric matrix. Then which of the following matrices is skew-symmetric matrix ? [Level: Moderate]

(a)

(b)

(c)

(d)

Question 14:

If the product of n matrices , then the value of a is [Level: Difficult]

(a) 13

(b) 14

(d) 16

Question 15:

Let A = . Then the number of 3 3 matrices B with entries from the set {1, 2, 3, 4, 5} and satisfying AB = BA is __________ . [Level: Moderate]

Question 16:

Let A = , where x, y and z are real numbers such that x + y + z > 0 and xyz = 2. If , then the value of is __________ .[Level: Moderate]

Question 17:

If P is an orthogonal matrix and A is an involutory matrix and Q = and B = , then is [Level: Difficult]

(a) A

(b)

(d) None of these

Question 18:

If A and B are square matrices of size n n such that = (A - B)(A + B), then which of the following is always true ? [Level: Easy]

(a) A = B

(b) AB = BA

(d) Either A or B is an identity matrix

Question 19:

If A = and I is a 2 2 unit matrix, prove that

I + A = Level: Moderate]

Question 20:

Let A = , x R and . If = 109, then is equal to __________ . [Level: Moderate]

**********

Problem-solving on JEE Maths Matrices NCERT Chapter 3 after learning a theoretical concept is crucial for several reasons:

Application of Knowledge: Problem-solving allows you to apply the theoretical concepts of the topic JEE Maths Matrices you have learned to real-life situations. It helps you bridge the gap between abstract knowledge and practical scenarios, making the learning more relevant and meaningful.
Understanding Deeper Concepts: When you encounter problems related to a theoretical concept that you learned in JEE Maths Matrices NCERT Chapter 3, you are forced to delve deeper into its intricacies. This deeper understanding enhances your comprehension of the subject and strengthens your grasp of the underlying principles.
Critical Thinking: Problem-solving encourages critical thinking and analytical skills. It requires you to analyze the problem, identify relevant information, and devise a logical solution. This process sharpens your mind and improves your ability to approach complex challenges effectively.
Retention and Recall: Actively engaging in problem-solving reinforces your memory and improves long-term retention. Applying the concepts learned in Matrices JEE Maths in practical scenarios helps you remember them better than passive reading or memorization.
Identifying Knowledge Gaps: When you attempt to solve problems, you may encounter areas where your understanding is lacking. These knowledge gaps become evident during problem-solving, and you can then focus on filling those gaps through further study and practice. You can refer Matrices JEE Maths Notes on LearnoHub.com
Boosting Confidence: Successfully solving problems after learning a theoretical concept boosts your confidence in your abilities to handle Matrices. This confidence motivates you to tackle more challenging tasks and improves your overall performance in the subject.
Preparation for Exams and Challenges: Many exams, especially in science, mathematics, and engineering, involve problem-solving tasks. Regular practice in problem-solving prepares you to face these exams with confidence and perform well. It is also advised to take tests on Matrices JEE Maths Online Tests at LearnoHub.com.
Enhancing Creativity: Problem-solving often requires thinking outside the box and exploring various approaches. This fosters creativity and innovation, enabling you to come up with novel solutions to different problems.
Life Skills Development: Problem-solving is a valuable life skill that extends beyond academics. It equips you with the ability to tackle various challenges you may encounter in personal and professional life.
Improving Decision Making: Problem-solving involves making decisions based on available information and logical reasoning. Practicing problem-solving enhances your decision-making skills, making you more effective in making informed choices.

In summary, problem-solving after learning a theoretical concept on CBSE Matrices JEE Maths is an essential part of the learning process. It enhances your understanding, critical thinking abilities, and retention of knowledge. Moreover, it equips you with valuable skills that are applicable in academic, personal, and professional contexts.

You must have heard of the phrase “Practice makes a man perfect”. Well, not just a man, practice indeed enhances perfection of every individual.

Practicing questions plays a pivotal role in achieving excellence in exams. Just as the adage goes, "Practice makes perfect," dedicating time to solve a diverse range of exam-related questions yields manifold benefits. Firstly, practicing questions allows students to familiarize themselves with the exam format and types of problems they might encounter. This familiarity instills confidence, reducing anxiety and improving performance on the actual exam day. Secondly, continuous practice sharpens problem-solving skills and enhances critical thinking, enabling students to approach complex problems with clarity and efficiency. Thirdly, it aids in identifying weak areas, allowing students to focus their efforts on improving specific topics. Moreover, practice aids in memory retention, as active engagement with the material reinforces learning. Regular practice also hones time management skills, ensuring that students can allocate appropriate time to each question during the exam. Overall, practicing questions not only boosts exam performance but also instills a deeper understanding of the subject matter, fostering a holistic and effective learning experience.

All About Daily Practice Problems on JEE Maths Matrices NCERT Chapter 3

Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on JEE Maths Matrices NCERT Chapter 3 useful.

Last but not least, to get the best hold on JEE Maths Matrices NCERT Chapter 3, do not forget to check out:

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Matrices JEE Maths NCERT Solutions
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Matrices JEE Maths DPPs, Download PDF of solutions
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JEE Maths Sample papers