ECZ 2016 · GCE Paper 1 — Matrices
If A = 1-2-14 and C = -13, calculate AC.
- A. [5; −11]
- B. [7; −13]
- C. [−7; 13]
- D. [−5; 13]
Verified working — step 1
A (2 × 2) times a (2 × 1) gives a (2 × 1) column - each entry is a row of A times the column C.The full step-by-step working and final answer, plus the video lesson for this topic, are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
Have a different question?
Search it — if it is from a past paper or a school mock, chances are we have it worked out, or one that uses the same method.
Search any past-paper question