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Mathematics - Matrices

Practise 65 COMEDK previous year questions on Matrices, compiled from papers spanning 2013 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty COMEDK tests.

Matrices has been asked in 14 of the 15 years of COMEDK papers analysed (2012–2026), with 65 questions in all. 42% of them were easy, 57% moderate and 2% tough. Most of its questions came from 2024, with 15 questions that year. In the last three years (2024–2026) it had 34 questions across 10 papers, about 3.4 per paper.

The chapter's 8 topics are not weighted equally: Inverse of a Matrix (17 questions, 26%), Product of Matrices (17 questions, 26%), and Adjoint and its Properties (15 questions, 23%) have been asked the most. Over the last five years the most frequent topics have been Product of Matrices (12), Adjoint and its Properties (11), and Inverse of a Matrix (11). Adjoint and its Properties has produced the most tough questions (1).

  1. 1If A and B are two square matrices of the same order such that and , then is equal to:09 May, 2026 (S1)Product of Matrices
  2. 2Given the matrices and , then the minor of the matrix is:09 May, 2026 (S1)Inverse of a Matrix
  3. 3Given and then is:09 May, 2026 (S1)Product of Matrices
  4. 4Given and . If then the value of is:09 May, 2026 (S2)Product of Matrices
  5. 5If the matrix is a skew symmetric matrix, the value of the expression is:09 May, 2026 (S2)Symmetric & Skew Symmetric Matrices
  6. 6Matrix , Given and are the minor and cofactor of the adjoint matrix of A respectively then the value of the expression is:09 May, 2026 (S2)Adjoint and its Properties
  7. 7If and I is an identity by matrix of order then25 May, 2025 (Shift)Adjoint and its Properties
  8. 8If the matrix is symmetric then the value of25 May, 2025 (Shift)Symmetric & Skew Symmetric Matrices
  9. 9If and I is an identity matrix of order then25 May, 2025 (Shift)Product of Matrices
  10. 10If then10 May, 2025 (S1)Inverse of a Matrix
  11. 11If then the product of and is10 May, 2025 (S1)Product of Matrices
  12. 12If then10 May, 2025 (S1)Product of Matrices
  13. 13If , then10 May, 2025 (S2)Formation and Basic of Matrix
  14. 14If and I is an identity matrix of order , then10 May, 2025 (S2)Basic Algebra of Matrices
  15. 15If , then the value of is equal to10 May, 2025 (S2)Adjoint and its Properties
  16. 16If then exists if10 May, 2025 (S3)Inverse of a Matrix
  17. 17If and and then equals10 May, 2025 (S3)Basic Algebra of Matrices
  18. 18Kiran purchased 3 pencils, 2 notebooks and one pen for ₹41. From the same shop Manasa purchased 2 pencils, one notebook and 2 pens for ₹ 29,10 May, 2025 (S3)Formation and Basic of Matrix
  19. 19If and where I is the identity matrix then10 May, 2025 (S3)Product of Matrices
  20. 20If then is equal to2024 (Afternoon Shift)Inverse of a Matrix
  21. 21Preview not available - open to view this question.2024 (Afternoon Shift)Adjoint and its Properties
  22. 22Preview not available - open to view this question.2024 (Afternoon Shift)Product of Matrices
  23. 23Preview not available - open to view this question.2024 (Afternoon Shift)Product of Matrices
  24. 24If the matrix is such that then is equal to2024 (Evening Shift)Inverse of a Matrix
  25. 25Preview not available - open to view this question.2024 (Evening Shift)Formation and Basic of Matrix
  26. 26Preview not available - open to view this question.2024 (Evening Shift)Adjoint and its Properties
  27. 27If , then equal to2024 (Memory Based)Inverse of a Matrix
  28. 28If is a singular matrix, then possible value of is2024 (Memory Based)Basic Algebra of Matrices
  29. 29If is a matrix of order 3 such that , then the value is2024 (Memory Based)Adjoint and its Properties
  30. 30Preview not available - open to view this question.2024 (Morning Shift)Product of Matrices
  31. 31If then the inverse of (where is an identity matrix) is2024 (Morning Shift)Inverse of a Matrix
  32. 32If then x is equal to2024 (Morning Shift)Product of Matrices
  33. 33Preview not available - open to view this question.2024 (Morning Shift)Adjoint and its Properties
  34. 34Preview not available - open to view this question.2024 (Morning Shift)Inverse of a Matrix
  35. 35Preview not available - open to view this question.2023 (Evening Shift)Product of Matrices
  36. 36and are invertible matrices of the same order such that if then is2023 (Evening Shift)Inverse of a Matrix
  37. 37Solution of and is2023 (Evening Shift)System of Linear Equations
  38. 38If and then2023 (Evening Shift)Basic Algebra of Matrices
  39. 39If , then equals to2023 (Memory Based)Inverse of a Matrix
  40. 40If is a matrix of order that , then is equal to2023 (Memory Based)Adjoint and its Properties
  41. 41If is a singular matrix, then possible values of are2023 (Memory Based)Types of Matrices
  42. 42If , then equals to2023 (Morning Shift)Inverse of a Matrix
  43. 43If is a matrix of order that , then is equal to2023 (Morning Shift)Adjoint and its Properties
  44. 44If for any square matrix , , then find the value of .2022Adjoint and its Properties
  45. 45If , then is equal to2022Adjoint and its Properties
  46. 46If for any square matrix , , then the value of2021Adjoint and its Properties
  47. 47If matrix and , then the value of is2021Product of Matrices
  48. 48If , then equals2021Adjoint and its Properties
  49. 49If a is the inverse of , then the value of is2020Inverse of a Matrix
  50. 50If is singular, then the possible values of are2020Basic Algebra of Matrices

Frequently Asked Questions

1.How many questions are available for Matrices?

This chapter includes 65 questions compiled from COMEDK papers spanning 2013 to 2026.

2.Are these questions only from COMEDK, or from other exams too?

These are COMEDK questions specifically for the Matrices chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Matrices an important chapter for COMEDK Mathematics?

Matrices has appeared in 14 of the 15 years of COMEDK papers covered here, with 65 questions across 23 papers - about 3 per paper it appears in.

4.What is the difficulty level of Matrices questions in COMEDK?

Of the 65 questions analysed for this chapter, 42% are easy, 57% moderate and 2% tough. 2024 had the most, with 15 questions.

5.Which topics in Matrices should I focus on?

These topics have carried the most weightage in Matrices:

  • Inverse of a Matrix - 17 questions (26%)
  • Product of Matrices - 17 questions (26%)
  • Adjoint and its Properties - 15 questions (23%)
  • Adjoint and its Properties has produced the most tough questions (1).
6.Is Matrices's weightage in COMEDK going up or down?

Across all 23 papers analysed, Matrices has averaged about 2.8 questions per paper. In the last three years (2024–2026), that average has risen, at about 3.4 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.