Please answer AND explain the following questions in detail

1. Using the grammar below show a parse tree and a leftmost derivation for the following statement:

Grammar: -> =

-> A | B | C

-> +

| *

| ( )

| Statement: A = A * (B + (C * A))

Answer (left most derivation):

Answer (parse tree)

2. Prove that the following grammar is ambiguous (Hint: Show the parse trees):

->

-> + |

-> a | b | c