Question

Alguieeeeeeeeen xfaaaaa, es urgente

Answer 1

B=

-1 3

2 1

I=

1 0

0 1

C=2B+3I

2B=

-2 6

4 2

3I=

3 0

0 3

sumando

C=

1 6

4 5

finalmente

a) c11 =1

b) c21=4