Question

If anyone knows this ans plz help us​

Answer 1

I think this is the answer

Please Mark me as Brainliest

Answer 2

B+A=A+B=

2+1 5-1

1-3 3+2

= 3 4

-2 5

and AB=

(2×1)+(5×-3) (2×-1)+(5×2)

(1×1)+(3×-3) (1×-1)+(3×2)

= 2+(-15) (-2)+10

1+(-9) (-1)+6

= -13 8

-8 5