Question

dada a matriz A= (1 2 1 || -3 5 -1) ,obtenha as matrizes

a) 4.A
b)1/3.A
c) -2.A

Answer 1

A=|1 2 1| 1 2 . |-3 5 -1| -3 5..... A= 5 +(-2)+(-3)-(-6)-(-1)-5 A= 0+6+1-5 A=2. a) 4.A =4.2= 8. b)1/3.A= 1/3.2= 2/3. c)-2.A= -2.2= -4.