Question: Find Regular Expressions for the following languages. (a) all strings not ending in ab = {a, b} (b) L3 = { w: |w/ mod 30}

Find Regular Expressions for the following languages. (a) all strings not

Find Regular Expressions for the following languages. (a) all strings not ending in ab = {a, b} (b) L3 = { w: |w/ mod 30} ={a,b) (c) L4 = { w: Na (w) mod 3 > 1 } = {a, b, c} (d) All strings that containing no more than three as = {a, b, c}

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