Question

the total number of elements in the power set of a set A containg 'n' elements is​

Answer 1

Number of Elements in Power Set –

For a given set S with n elements, number of elements in P(S) is 2^n. As each element has two possibilities (present or absent}, possible subsets are 2×2×2.. n times = 2^n. Therefore, power set contains 2^n elements.