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closed as a duplicate of: GATE CSE 2005 | Question: 14
The grammar A → AA | (A) | ε is not suitable for predictive parsing because the grammar is

(A) ambiguous
(B) left-recursive
(C) right-recursive
(D) an operator-grammar

 please clear this ambiguity

if grammar is ambiguous then it is not suitable for LL(1)

or grammar is left recursive then it is not suitable for LL(1)  

or grammar is ambiguous and left recursive then it is not suitable for LL(1) grammar.
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