What element is a location a_23 of matrix A, if
|4 -3 4|
5 0 -6
7 2 -8
I have the answer at -6
Is this correct?
yes
Solve for x
Matrix
(5x-8 1 = (2 1
3 4m-1) 3 7m +6)
How do I do this?
Solution of the determinant? Matrix
|1 7
0 3|
How do I do this?
1)Solve the system
5x-8=2
4m-1=7m+6
2)Determinant=1*3-0*7
answer
1. ?
2. 3
1.
5x = 10 so x = 2
2. 3 is correct
To determine the element at location a_23 of matrix A, you need to identify the row and column at that location.
In this case, "a_23" refers to the element in the second row (row index 2) and the third column (column index 3) of matrix A.
Looking at the matrix A:
| 4 -3 4 |
| 5 0 -6 |
| 7 2 -8 |
The element at the location a_23 is -6.
Therefore, the answer you provided (-6) is correct.