Question

Can someone check my answer please?

Answer:

-1 38
5 34

Answer 1

B+C would give
[-1, 6
1, 4]
Then A * (B+C) would be
[3, 2 * [-1, 6
-1, 4] 1, 4]

Top-left corner would be (3*-1) + (2*1) = -3+2 = -1
Top-right corner would be (3*6)+(2*4) = 18+8 = 26
Bottom-left corner would be (-1*-1)+(4*1) = 1+4 = 5
Bottom-right corner would be (-1*6)+(4*4) = -6+16 = 10

So, I think the final result would be

[-1, 26
5, 10]

But it has been a while since I've done Matrix Multiplication, so I am prepared to be corrected, if necessary

Answer 2

Hmm for the first part wouldn't it be 7+3 which is 10?

Answer 3

Since we are adding not subtracting

Answer 4

Thank you so much!

Answer 5

No problem at all :)