(3) Give a grammar G =(V.E.Š,P), wherel =14,B.C,2 ={a,b;,S =4, P: A- a4|bB, B bC aB,C aB|aC\2. (a) Is G a regular grammar? Why? (b) Find an nfa which accepts the language L(G). (c) Find the regular expression r associated with the language accepted by the above nfa. (d) Find regular language L(r) from the above r.

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