a. How many onto functions are there from a set with three from a set with three elements to a set with two elements?
b. How many onto function are there from a set with three elements to a set with five elements?
c. Howmany onto functions are there from a set with three elements to a set with three elements?
d. How many onto functions are there from a set four elements to a set with two elements?
e. How many onto functions are there from a set with four elements to a with three elements?
Let
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