Question
Consider $f:\{1,2,3\} \rightarrow\{a, b, c\}$ given by $f(1)=a, f(2)=b$ and $f(3)=c$. Find $f^{-1}$ and show that $\left(f^{-1}\right)^{-1}=f$.
Step 1
The function $f$ is defined as $f(1)=a, f(2)=b$ and $f(3)=c$. This means that for each input from the set $\{1,2,3\}$, the function $f$ gives a corresponding output from the set $\{a,b,c\}$. Show more…
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