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ECAT - Practice Test - Maths - Algebra Quiz

Attempt 10 MCQs on ECAT - Practice Test - Maths - Algebra | Quiz 2

11. A matrix with 3 rows and 4 columns has what order?



12. Which of the following defines a square matrix?



13. If matrix A is a 2×3 matrix, then Aᵀ (transpose) has order:



14. What is an identity matrix?



15. What is the condition for adding two matrices?



16. A null matrix has all elements equal to:



17. The sum of a matrix A and its additive inverse (−A) is:



18. What is a diagonal matrix?



19. What is the determinant of a 2×2 matrix [[a, b], [c, d]]?



20. What is the determinant of [[2, 1], [3, 4]]?



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