Subject Mathematics Discrete Math

Question

For each function below give the inverse function, if it exists, else say why it has no inverse.

a) f(0)=1, f(1)=2, f(2)=3, f(3)=4, f(4)=5, f(5)=6

b) f(0)=1, f(1)=2, f(2)=3, f(3)=3, f(4)=6, f(5)=7

Solution Preview

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We have the following identities:
f (0) =1 => g(1)=0 as inverse function
f(1) =2 => g(2)=1 as inverse function
f(2)=3 => g(3)=2 as inverse function
...

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