Review

Answer each question using the above matrices.

1) A + B

2) 3B + AB

3) A^T + B^T

4) 4AB

5) CD

6) H^TG

7) What are the dimensions of matrix C?

8) What is entry c₂₁?

9) 2H^TH

10) AI

11) BF - B

12) -8F

Solve for the unknowns.

Answers

7) C_2x4
8) c₂₁ = -1

13) x = 13
14) (-4, -4)