Thanks for the answer. I did the calculation using the function: =SUM(MMULT({Matrix_1};{Matrix_2})) and resulted in the value 4.
Can anyone tell me if this is wrong?
No, it's not. I don't have computer class in high school. I'm just training a little of Excel with lists of exercises. But thanks for your help anyway.
Certainly I hope to see an addition, as in the end of this question says 'a11+a22'..
7 | 4 | 0 | -2 | 7 | 2 | ||
1 | 1 | 3 | 1 | 4 | 2 |
Now I understand your explanation. This is really complicated to understand, I mean what the question asks.
This range of cells in which the question says: 'a11+a22'... It was totally confused to me!
But I think your explanation is correct. You have very good logical reasoning.
Thanks, you helped me a lot, really.