Question

O determinante da matriz 102 341 213 ,é igual a

Answer 1

Det |1 0 2|1 0

|3 4 1|3 4

|2 1 3|2 1

= 1×4×3, 0×1×2, 2×3×1 - (2×4×2, 1×1×1, 0×3×3)

= 12 + 0 + 6 - ( 16 + 1 + 0)

= 18 - 17

= ( 1 )