PRC-2 · Chapter 4 · Question 54 of 60
What is the product of a matrix A and its inverse A^-1?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) The Identity Matrix (I)
Explanation
Just as 5 × (1/5) = 1 in regular math, a matrix multiplied by its inverse always results in the identity matrix.
More Linear Programming MCQs
- Q56A matrix with only one single column is called a:
- Q57If you multiply a 2x3 matrix by a 3x4 matrix, the resulting matrix will have an order of:
- Q58For a 2x2 matrix [[a, b], [c, d]], how do you find the 'Adjoint'?
- Q59Which of the following is true for matrix multiplication (where conformable)?
- Q60A matrix where every single element is zero (0) is called a: