ECZ 2025 · O-Level Paper 1 — Trigonometry
Given that tan ∠BAC = 34, find the value of sin ∠BAC.
- A. 45
- B. 34
- C. 35
- D. 43
Verified working — step 1
tan gives two sides of a right-angled triangle - opposite 3, adjacent 4. Pythagoras supplies the third side, and then sin can be read off.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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