Question

Exercícios escalonamento a) { 3x+2y+z=10 x+2y+2z=11 x+y+z=6

Answer 1

3 2 1 10
1 2 2 11 L1-1/3×L2
1 1 1 6 L1-1/3×L3

3 2 1 10
0 4/3 1/3 19/3
0 5/3 2/3 8 L2-4/5×L3

3 2 1 10
0 4/3 1/3 19/3
0 0 -1/5 -1/15

z=1/3
y=14/3
x=1

Fiz aqui no cel, n conferi.