Question

4. Calcule o determinante da matriz?

145

2-1 2

303​

Answer 1

Olá,

$det(A) = (1 \times 2 \times (-3) )+ (4 \times 2 \times 3) + (5\times 2 \times 0) - ((5\times(- 1) \times 3) + (1 \times 2 \times 0) + (4 \times 2 \times 3))$

$det(A) = -3 + 24 + 0 - (-15+ 0 + 24)$

$det(A) = 21 - 9$

$det(A) = 12$