Question

02.
(i) If the number of proper subsets of a set is 63, find the
number of elements in the set.
[2
(ii) If A= {a,b,c}then write the power set P(A). [1]
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Answer 1

Answer:

number of proper subsets = 2^n - 1

2^n - 1 = 63

2^n = 63 + 1

2^n = 64

2^n = 2^6

n = 6