butlerenovia butlerenovia

17-10-2017
Mathematics

contestada

Evaluate the determinant for the following matrix [144] [522] [155]

Respuesta :

Edufirst Edufirst

17-10-2017

Matrix :

1    4    4

5 2    2

1    5    5

=> Determinant =

1 * (2*5 - 2*5) - 4 * (5*5 - 1*2) + 4 * ( 5*5 - 2*1)

= 1*(10 - 10) - 4*(25 - 2) + 4*(25 -2) = 1*0 + 4* 23 + 4*(25 - 2) = 0 - 4*23 + 4*23 = 0

Answer: 0

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