7)ANSWER)
Given Grammar
S->Aa
A->B
B->Aa
There is no terminating production in given grammar.So the given grammar accepts φ... means it doesn't generating any language.
7. What language does the grammar with these productions generate (5 points)? S + Aa, AB,...
15. Give a simple description of the language generated by the grammar with productions SaaA, A -> bS 16. What language does the grammar with these productions generate? A ->B B- Aa
What language does the grammar below generate? S rightarrow abS | aA A rightarrow aA | a Select the correct answer. L = {(ab)^n aaa^m: n greaterthanorequalto 0, m greaterthanorequalto 0} L = {(ab)^n a^m: n greaterthanorequalto 0, m greaterthanorequalto 1} L = {a^n b^n a^m: n greaterthanorequalto 0, m greaterthanorequalto 2} L = {a^n b^n a^m: n greaterthanorequalto 0, m greaterthanorequalto 1}
Remove all lambda-productions, unit-productions, and useless productions from the following grammar.S -> AB | BC | aAbA -> Aa | D | lambdaB -> aSC | bB | lambdaC -> aC | bBCD -> abS | ab
4. Consider the following context-free grammar S SSSS a (a) Show how the string aa+a* can be generated by this grammar (b) What language does this grammar generate? Explain
For the following grammar (7 points) 1. B - Ba|A S - ABb A - Aba |A to find a grammar without A productions that generates the same language, we first identify non-terminals that drive A. These non-terminals are: A and B. Then from S - ABb, we construct S from A - Aba, we construct A - from B - Ba, we construct B - So, the grammar without A that generates the same language is:
Give a set notation definition of the language generated by the grammar S → aS | aA | a A → aAb | ab
-Find a left-linear grammar for the language L((aaab*ba)*). -Find a regular grammar that generates the language L(aa* (ab + a)*).-Construct an NFA that accepts the language generated by the grammar.S → abS|A,A → baB,B → aA|bb
Remove the λ - productions from the grammar: S → aAb | BBa A → bb B → AA | λ
Construct a regular grammar G (a" b) c (aa bb)? VT, S, P) that generates the language generated by
Construct a regular grammar G (a" b) c (aa bb)? VT, S, P) that generates the language generated by
Find a derivation tree in
Example 5.1 ({S}, {a, b}, S, P), with productions The grammar G - aSa, bSb S is context-free. A typical derivation in this grammar is S aSa aa Saa aabSbaa aabbaa This, and similar derivations, make it clear that {a, b}'} L (G) wwR