Question

Write all the subsets of A = { a, b, c, d }​

Answer 1

Answer:

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Answer 2

Answer:

{},{a},{b},{c},{d},{a,b},{a,c},{a,d},{b,c},{b,d},{c,d},{a,b,c},{a,c,d},{b,c,d},{a,b,d},{a,b,c,d}