Question

Dadas as matrizes A e B abaixo, calcule det AB​

Answer 1

Resposta:

66

Explicação passo-a-passo:

Use o teorema de Binet

$det(A.B)=detA.det(B)\\detA = (-1)(-8)-(3)(2)=8-6=2\\detB=(2)(0)-(3)(-11)=0-(-33)=33, logo:\\\\det(AB)=detA.detB=2.33=66$

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