–1 votes –1 votes ram kishore asked Jan 22, 2017 ram kishore 377 views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply srestha commented Jan 22, 2017 reply Follow Share write down the question 2 votes 2 votes ram kishore commented Jan 24, 2017 reply Follow Share This question 0 votes 0 votes Please log in or register to add a comment.
2 votes 2 votes $S \rightarrow aS|AAA$ $A \rightarrow bA$ but then no string is ever generated by this grammar. So there doesn't exist any useful production in this grammar L(G) = $\phi$ Mk Utkarsh answered Mar 22, 2018 Mk Utkarsh comment Share Follow See all 0 reply Please log in or register to add a comment.