The set A has 4 elements and thse set B ...

The set A has 4 elements and thse set B has 5 elements, then the number of injective mapping that can be defined from A to B is

A

72

B

120

C

144

D

60

Verified by Experts

The correct Answer is:

B

Similar Questions

Explore conceptually related problems

Set A has 3 elements and set B has 4 elements. The number of injections that can be defined from A to B is

If R is a relation from a finite set A having m elements to a finite set B having n elements then the number of relations from A to B is

If the set A contains 5 elements, then the number of elements in the power set P(A) is equal to

If A and B are two finite sets having m and n elements respectively, then the total number of mapping from A to B is…

If A is any finite set, then the number of elements common in A and A' are

Let R be an equivalence relation on a finite set A having n elements. Then the number of ordered pairs in R is

If the two sets A and B are having 43 elements in common, then the number of elements common to each of the sets A xx B and B xx A is