ECZ 2017 · O-Level Paper 1 — Trigonometry
It is given that triangle PQR below is right angled at R. QR = 4cm and tan(angle QPR) = 43. Find sin(angle PQR).
- A. 45
- B. 35
- C. 43
- D. 34
Verified working — step 1
Label the sides RELATIVE to each angle: QR = 4 is opposite angle P, and tan P fixes the third side.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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