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JAMB Mathematics · Algebra

Matrices and Determinants: JAMB Mathematics Past Questions and Answers

What the JAMB syllabus covers in Matrices and Determinants

Our summary: Adding and multiplying matrices, finding determinants and inverting 2 x 2 matrices.

  • Algebra of matrices not exceeding 3×33 \times 3
  • Determinants of matrices not exceeding 3×33 \times 3
  • Inverses of 2×22 \times 2 matrices

Objectives

  • Perform basic operations (×,+,−,÷\times, +, -, \div) on matrices
  • Calculate determinants
  • Compute inverses of 2×22 \times 2 matrices

Syllabus content © The Joint Admissions and Matriculation Board (UTME).

JAMB Mathematics questions on Matrices and Determinants

  1. JAMB 2025If I is a 2 × 2 identity matrix, find the determinant of the matrix.
  2. JAMB 2025Given that P = 1 3 2 -5 and Q = 3 -7 1 2 . Find P + 2Q
  3. JAMB 2025The determinant of the matrix A = -2 3 1 p 2 1 1 4 2 is -5. Find the value of p.
  4. JAMB 2025Find the sum of the entries in the inverse of 1 2 3 5
  5. JAMB 2024Evaluate the determinant of the matrix M = 3 4 6 2 1 -1 -1 3 5
  6. JAMB 2024If A = 3 2 1 4 2 -1 and B = 1 4 0 1 3 2 . Find A ^T + B, ( where T means transpose)
  7. JAMB 2024Let A = 2 -4 3 5 1 0 and B = 1 4 -2 -3 3 -1 . Find A + 2B
  8. JAMB 2024Given P = 1 2 2 3 , find P ^2 - 4P - I where I is the identity matrix
  9. JAMB 2023If D = 2 -1 3 4 1 2 1 -3 1 Find D
  10. JAMB 2023Find the matrix A A bmatrix 0 1 2 -1 bmatrix = bmatrix 2 -1 1 0 bmatrix
  11. JAMB 2022If A = 2 1 2 3 1 2 and B = 3 2 4 2 . Find AB
  12. JAMB 2022Find the determinant of the matrix A = 2 3 1 3
  13. JAMB 2020Find the non-zero positive value of x which satisfies the equation x 1 0 1 x 1 0 1 x = 0
  14. JAMB 2019Given matrix M = -2 0 4 0 -1 6 5 6 3 , find M^ T + 2M
  15. JAMB 2019If 2 -4 x 9 = 58 , find the value of x.
  16. JAMB 2019Given the matrix A = 3 -2 1 6 . Find the inverse of matrix A.
  17. JAMB 2019If 2 -5 3 x 1 4 0 3 2 = 132 , find the value of x.
  18. JAMB 2014Find y, if 5 -6 2 -7 x y = 7 -11
  19. JAMB 2014If -x 12 -1 4 = - 12 , find x.
  20. JAMB 2013If P = 5 3 2 1 and Q = 4 2 3 5 , find 2P + Q
  21. JAMB 2012If 5 3 x 2 = 3 5 4 5 , find the value of x
  22. JAMB 2012Given that I3 is a unit matrix of order 3, find I3
  23. JAMB 2011Evaluate 4 2 -1 2 3 -1 -1 1 3
  24. JAMB 2011The inverse of matrix N = 2 3 1 4 is
  25. JAMB 2011If 2 3 5 3x = 4 1 3 2x , find the value of x.
  26. JAMB 2010If P = 2 -3 1 1 , what is P ^-1
  27. JAMB 2010Evaluate 2 0 5 4 6 3 8 9 1
  28. JAMB 2010If x 3 2 7 = 15 , find the value of x

Years with Matrices and Determinants questions in DeeepSolve's question bank

From the past questions DeeepSolve holds, not a count of everything the exam body has set.

  • 2025
  • 2024
  • 2023
  • 2022
  • 2020
  • 2019
  • 2014
  • 2013
  • 2012
  • 2011
  • 2010
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