Question

dadas as matrizes A = ( 2 6 3 ),B= ( 1 6 2 ) e C= ( 0 4 -2 ) A+B-C​
A-B+C
A-B-C

Answer 1

A + B - C

(2 + 1 - 0   6 + 6 - 4   3 + 2 - (-2)) = ( 3 8 7 )

A - B + C

(2 - 1 + 0   6 - 6 + 4   3 - 2 + (-2)) = ( 1 4 -1 )

A - B - C

(2 - 1 - 0   6 - 6 - 4   3 - 2 - (-2)) = ( 1 -4 3 )