Question: + | + a | a + b | b + a b | a b (a) Show that this grammar is ambiguous. (b) Rewrite

+ | + "a" | "a" + "b" | "b" +

+ | + "a" | "a" + "b" | "b" + "a" "b" | "a" "b" (a) Show that this grammar is ambiguous. (b) Rewrite the grammar to a one that is unambiguous. The new grammar must generate the exact same language. HINT: Only a single rule needs to be changed

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