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Need help with numver 2 thank you. Question 2 : Let G be the following context-free grammar: A id = E E E + T

Need help with numver 2 thank you.

Question 2 :

Let G be the following context-free grammar: A id = E

E E + T | E - T | T

T id | num | ( E ) | p(E)

a/ Provide a left-most derivation of the string a = p(a + (c - 3)) and draw the parse tree.

b/ Provide a right-most derivation of the string a = p(a + (c - 3)) and draw the parse tree.

c / Is this grammar unambigious? Explain

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