Question: a) Write a regular expression for the language of strings over = {, } consisting of exactly two 's. b) Write a regular expression for

a) Write a regular expression for the language of strings over = {, } consisting of exactly two 's. b) Write a regular expression for the language of strings over = {0,1} that have an odd number of 1's. c) Write a regular expression for the language of strings over = {, } whose length is a multiple of 3.

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