Find the number of surjections (onto f) and from a set A containing 6 elements to a set B containing 2 elements.

Find the number of surjections from a set A containing 6 elements into a set B containing 2 elements.

Find the the number of functions from a set A containing 5 elements into a set B containing 4 elements.

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

The number of functions that can be defined from a set containing 25 elements into a set containing 30 elements is

The number of functions that can be defined from a set containing 25 elements into a set containing 30 elements is

The number of functions that can be defined from a set containing 20 elements into a set containing 40 elements is

Find the number of bijections from a set A containing 7 elements onto itself.

The number of one-one functions from a set containing 2 elements to a set containing 3 elements is: