EJERCICIO 11 -2 3

A= 5 -1 2 Det = 223 4 -3

-5 21 23adj(A)= 6 -12 -10

-1 13 9

1 5 3Trans= -2 -1 4

3 2 -3

EJERCICIO 2

x -3y +2z = -35x +6y -z = 134x -y +3z = 8

1 -3 2 = -35 6 -1 = 13 Det= 164 -1 3 = 8

AX-3 -3 213 6 -1 Det= -32

8 -1 3 x= -2AY

1 -3 25 13 -1 Det= 804 8 3 y= 5

AZ1 -3 -35 6 13 det= 1124 -1 8 z= 7

-5 21 23 -0.23 0.27 -0.05A-1= 1/22 * 6 -12 -10 = 0.95 -0.55 0.59

-1 13 9 1.05 -0.45 0.41

EJERCICIO 3

U= 3 5 -4 3 5 U X V= -23 -19 -41V= 7 -2 -3 7 -2