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1. (20 points) Design a context-free grammar (CFG) for the following language (15 points), and briefly describe the strings derived by each variable of your

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1. (20 points) Design a context-free grammar (CFG) for the following language (15 points), and briefly describe the strings derived by each variable of your grammar (5 points). L- the complement of {a"bn | n 0} over alphabet {a, b) Hint: we can create L from the following languages

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