Matriz: 0 1 3 0
1 0 3 0
3 3 8 0
0 0 0 2

Determine uma base para o subespaço definido pelo conjunto solução do sistema linear (A+I4)X=0.
A. {(−3,0,1,0),(−1,1,0,0)}
B. {(−3,0,1,0),(−3,1,0,0)}
C. {(−1,0,1,0),(−1,1,0,0)}
D. {(−1,0,1,0),(−3,1,0,0)}

Eu não entendi nada dessa matéria :'(

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