Question

dadas as matrizes A= -1 2 e B = 2 -2 , calcule DetA,detB 3 -5 3 0

Answer 1

A= -1 2 e B = 2 -2 , calcule det A,  det B

      3 -5         3 0

det A=-1*(-5)-3*2 =5-6 =-1

det b =2*0+6= 6