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A and B are two non-empty sets so n(A) +1 = n(B). The difference of the cardinalnumber of their power sets is 448. Find the number of elements of B.

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Solution :(i) `2^(n(A)) - 2^(n(B)) = 448` and PROCEEDS.
(II) `2^(n(A)) - 2n^(n(B)) = 448`,where `n(A)` and `n(B)` are INTEGERS.


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