ECZ 2017 · GCE Paper 1 — Index Notation
Given that x = 3.2 × 3⁴ and y = 4 × 3², evaluate xy.
- A. 0.8
- B. 72
- C. 7.2
- D. 2.4
Verified working — step 1
xy= 3.2 × 3⁴4 × 3²= (3.24) × 3⁴⁻² = 0.8 × 9 = …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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