Resposta:
det(A) = 38
Explicação passo a passo:
[tex]\displaystyle A=\left[\begin{array}{ccc}3&1&-2\\-1&4&1\\3&2&1\end{array}\right] \\\\\\det(A)=3.4.1+1.1.3+(-1).2.(-2)-3.4.(-2)-(-1).1.1-2.1.3=12 + 3 + 4 + 24 + 1-6=38[/tex]
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Resposta:
det(A) = 38
Explicação passo a passo:
[tex]\displaystyle A=\left[\begin{array}{ccc}3&1&-2\\-1&4&1\\3&2&1\end{array}\right] \\\\\\det(A)=3.4.1+1.1.3+(-1).2.(-2)-3.4.(-2)-(-1).1.1-2.1.3=12 + 3 + 4 + 24 + 1-6=38[/tex]