If a non-empty set A contains n elements, then its power set contains how many elements ?

A set contain n elements, then power set contains:

A set contains n elements. The Power set contains

A set contains n elements.The power set contains

A-set contains 4 elements. It’s power set will contain _______ element.

A set constant n elements. The power set of this set contains.

If A is a finite set and contains n elements, prove that the power set of A has 2^n elements.

what are the number of onto functions from set A containing m elements to the set B containing n elements

How many on-to functions can be defined from a set A containing n elements to another set B containing 3 elements