ECZ 2016 · O-Level Paper 1 — Matrices
Express (−1 2 −3)(5 −2 ; 4 2 ; 3 1) as a single matrix.
- A. (6 −3)
- B. (−6 −3)
- C. (−14 5)
- D. (−6 3)
Verified working — step 1
(−1×5 + 2×4 + (−3)×3, −1×(−2) + 2×2 + (−3)×1) = (−5 + 8 − 9, 2 + 4 − 3) = …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.
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