Question

dadas as matrizes A= 2 3 4 -6, B= 7 8 -5 1 e C= 3 2 0 -2 determine: A+B , B -C , 2A + B , A-3B + C

Answer 1

a) A+B = [8 11 -1 -5]

b) B-C=[6 5-1-5]

C)2A+B=[2 6 8 -12]+[7 8 -5 1]=[9 14 3 -11]

D)A-3B+C=[1 3 4 -6]-[21 24 -15 3]=[20 21 -11 -3]+[3 2 0 -2]=[23 24 -9 -1]