t A and B be sets where n(A) = 7 and n(B) = 4. .1) How many different functions are there from A to B?

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Let A and B be sets where n(A) = 7 and n(B) = 4.
(: .1) How many different functions are there from A to B?
(^.2) How many one-to-one functions are there from B to A (note the order here)?
( 7.3) How many onto functions are there from A to B?
Transcribed Image Text:Let A and B be sets where n(A) = 7 and n(B) = 4. (: .1) How many different functions are there from A to B? (^.2) How many one-to-one functions are there from B to A (note the order here)? ( 7.3) How many onto functions are there from A to B?
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