ECZ 2022 · O-Level Paper 1 — Sets
Given that the universal set E={1,3,5,7,9,11},X={1,5,9} and Y={3,9,11}, list X∩Y'.
- A. {1,5}
- B. {1,9}
- C. {5,7}
- D. {3,11}
Verified working — step 1
The complement Y′ contains elements in the universal set E that are not in Y: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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