ECZ 2019 · GCE Paper 1 — Index Notation
Evaluate (⁴√81)³.
- A. 12
- B. 27
- C. 9
- D. 81
Verified working — step 1
The fourth root of 81 is 3 (since 3⁴ = 81). Then 3³ = 27. In index form: (81)34 = (3⁴)34 = 3³ = …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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