Question: Is the language L = {a, abb, abbb, 1} regular or non-regular? Why? A formal statement/proof is needed. Is the language L = {(ab) n

Is the language L = {a, abb, abbb, 1} regular or

Is the language L = {a, abb, abbb, 1} regular or non-regular? Why? A formal statement/proof is needed. Is the language L = {(ab) n (cd)n: n 2 0} regular or non-regular? Why? A formal statement/proof is needed. Is the language L = {(ab) n (cd) nd 2:n 2 0} regular or non-regular? Why? A formal statement/proof is needed

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