Let A {a, b, c, d, e} and B = {1, 2, 3}. a. Find the number of 1-1 functions from A to A b. Find the number of 1-1 functions from A to B c. Find the number of 1-1 functions from B to A

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Let A = {a, b, c, d, e} and B = {1, 2, 3}.
a. Find the number of 1-1 functions from A to A
b. Find the number of 1-1 functions from A to B
c. Find the number of 1-1 functions from B to A
Transcribed Image Text:Let A = {a, b, c, d, e} and B = {1, 2, 3}. a. Find the number of 1-1 functions from A to A b. Find the number of 1-1 functions from A to B c. Find the number of 1-1 functions from B to A
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