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a set A has 3 elements and a set B has 4 elements. what is the number of injections that can be defined from A to B?

a set A has 3 elements and a set B has 4 elements. what is the number of injections that can be defined from A to B?

Grade:

1 Answers

jitender lakhanpal
62 Points
7 years ago

hi shruti 

 

the total number of injective mappings from a set A containing 3 elements

to a set B containing 3 elements is equal to the total number of arrangements

of 4 by taking 3 at a time i.e P ( 4 , 3 ) = 24

 

jitender

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