Question

calcule o determinante da matriz A = [ 4 -1 0
5 7 6
2 1 3 ]

Answer 1

Ok. Calculando o DET:
detA= (4*7*3)+(-1*6*2)+(0*5*1)-[(0*7*2)+(6*1*4)+(3*-1*5)]
detA= 84-12+0-[0+24-15]
detA=72-9
detA= 63