ECZ 2025 · GCE Paper 1 — Index Notation

Evaluate (⁴√16/81)³.

Verified working — step 1

The small 4 on the radical sign means a FOURTH root, not a square root. Take the root first so the numbers stay small, then cube.

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Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.

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