How many functions are from the set


Discussion:

Q: Let A = {a, b, c, d} and the set B = { 1, 2, 3}

(a) How many functions are there from the set A to the set B. Explain.

(b) How many 1-to-1 functions are there from the set A to the set B. Explain

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Mathematics: How many functions are from the set
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