Question: Part 2 : Count ' Em Consider strings over the alphabet { a , b } . Given xin { a , b } *

Part 2: Count 'Em
Consider strings over the alphabet {a,b}. Given xin{a,b}* and cin{a,b}, define #?c(x) to be the number of occurrences of the character c in x. Let A={x|#?a(x)+2#?b(x)-=0mod3}. Prove
that A is regular by giving a DFA M such that L(M)=A. Furthermore, prove that L(M)=A.
For advice on proving DFAs are correct (and a new example), consult the DFAs guide on Piazza.
Part 2 : Count ' Em Consider strings over the

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