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Automata 3, Let Li and L2 be two regular languages. Show that L3 = {xz : x and r E L2 is a context-free language.

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3, Let Li and L2 be two regular languages. Show that L3 = {xz" : x and r E L2 is a context-free language. 4. Show that L = {a2mb3mC4m : m 0} is not a context free language. Li 3, Let Li and L2 be two regular languages. Show that L3 = {xz" : x and r E L2 is a context-free language. 4. Show that L = {a2mb3mC4m : m 0} is not a context free language. Li

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