Question

what is a power set??please give good definition.will mark as brainliest for the best answer​

Answer 1

Answer:

The number of subsets with k elements in the power set of a set with n elements is given by the number of combinations, C(n, k), also called binomial coefficients. For example, the power set of a set with three elements, has: ... C(3, 3) = 1 subset with 3 elements (the original set itself).

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Answer 2

In set theory, the power set (or powerset) of a Set A is defined as the set of all subsets of the Set A including the Set itself and the null or empty set. It is denoted by P(A). Basically, this set is the combination of all subsets including null set, of a given set.