ECZ 2018 · GCE Paper 1 — Index Notation

Evaluate 27²³.

Verified working — step 1

A fractional index gives two instructions: the bottom (3) says cube root, the top (2) says square. Root first keeps the numbers small.

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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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