ECZ 2013 · O-Level Paper 1 — Sets
How many subsets has the set A = {1}?
- A. 1
- B. 3
- C. 2
- D. 4
Verified working — step 1
A set with n elements has 2^n subsets. Here n = …The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
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