SOLUTION: 7. Find the diagonal and trace of each of the following matrices.
(i) A =
1 3 6
2-5 8
4-2 9
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Question 1126247: 7. Find the diagonal and trace of each of the following matrices.
(i) A =
1 3 6
2-5 8
4-2 9
Answer by ikleyn(52893) (Show Source): You can put this solution on YOUR website!
.
Do you know the meaning of the term "diagonal of the matrix" ?
If you do, then write the 3 numbers on the diagonal - in the row.
Then add these 3 numbers.
It will be the trace of the matrix.
There is nothing difficult in it.
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