ECZ 2021 · GCE Paper 1 — Vectors In Two Dimensions
The components of the vectors OA and OB are (23) and (42) respectively. Write BA as a column vector.
- A. (2 / −1)
- B. (−21)
- C. (65)
- D. (−2 / −1)
Verified working — step 1
BA = OA − OB = (23) − (42) = (2 − 43− 2) = …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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