1. Write the regular expression for the regular language L over alphabet = {0, 1} consisting...
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1. Write the regular expression for the regular language L over alphabet Σ= {0, 1} consisting of strings which contain exactly three 1's or exactly four 1's. 2. Write a regular expression that will match a non-negative real number with an optional decimal part. 1. Write the regular expression for the regular language L over alphabet Σ= {0, 1} consisting of strings which contain exactly three 1's or exactly four 1's. 2. Write a regular expression that will match a non-negative real number with an optional decimal part.
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