ECZ 2021 · O-Level Paper 1 — Trigonometry
In the diagram below, AB = 3cm, BC = 4cm, AD = 13cm and ABC = ACD = 90°. Calculate the value of tan DAC.

- A. 34
- B. 125
- C. 512
- D. 43
Verified working — step 1
In triangle ABC: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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