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Mathematics, 24.04.2020 15:22 Jreye77
A) How many one-to-one functions are there from a set with four elements to a set with five elements? (b) How many one-to-one functions are there from a set with four elements to a set with three elements? (c) How many one-to-one functions are there from a set with four elements to a set with four elements? (d) How many one-to-one functions are there from a set with four elements to a set with six elements? (e) How many one-to-one functions are there from a set with m elements to a set with n elements, where m ≤ n?
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