Question

1- Calcule o determinante usando o teorema de laplace:

a)
A = [1 3 -1]
[0 2 -4]
[1 0 5]

Answer 1

det(A) = C11 + C31

C11 = det(d11) = 10

C31 = det(d31) = -10

det(A) = 10 - 10

det(A) = 0

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