ECZ 2023 · GCE Paper 1 — Matrices
Given that P = 4-10203 and Q = 123, find PQ.
- A. 211
- B. 211
- C. 112
- D. 65
Verified working — step 1
A (2 × 3) matrix times a (3 × 1) column gives a (2 × 1) column: each ROW of P runs along the column of Q.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.
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