ECZ 2012 · O-Level Paper 1 — Matrices
Given that A = 1-345 and B = 93-126, find A - (13)B.
- A. -8-6163
- B. -2-403
- C. -2-483
- D. 4-207
Verified working — step 1
Scale B down by a third FIRST, then subtract entry by entry - minding 4 - (-4) at the bottom left.The full step-by-step working and final answer 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