Hi Guys, we had this question where we they gave us two matrices which I will show below, first one has a determinant of 4 and we needed to select and answer for the determinant of the second matrix, my answer was 4, the lecturer's answer was 24.
If the matrix | a b c || d e f | = 4| g h i |
What is the below matrix equal to?| (g+2a) (h+2b) (i + 2c) |
| 3a 3b 3c | | 2d 2e 2f |
appologies it does not seem that this question displays correctly...

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sorry don't know matrices

doesn't it have to be a square matrix to find determinant ?

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