Question
Let $\Sigma$ denote the English alphabet. Let $g : \Sigma^{*} \rightarrow \Sigma^{*}$ defined by $f(w)=$ awa. The function prefixes and suffixes each word with a. Find $f(w)$ for each word $w .$nesthesi
Step 1
This means that for any word $w$, we add the letter 'a' at the beginning and at the end of the word. Show more…
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