3 19. The sum of matrices A and B is C. If A = and B What is C12? L5

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19 and 20 pls

19. The sum of matrices A and B is C. If A =
- and B = What is Ci2?
A. 2
B. 0
C. -4
D. -3
20. The matrix A, B and C are shown.
A =
В -
If A -B = C, then what is k?
A. 2
В.3
С.4
D. 5
Transcribed Image Text:19. The sum of matrices A and B is C. If A = - and B = What is Ci2? A. 2 B. 0 C. -4 D. -3 20. The matrix A, B and C are shown. A = В - If A -B = C, then what is k? A. 2 В.3 С.4 D. 5
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