Question: (6) [10 marks] If A and B are languages, define A o B = {xy | X E A and y e B and x]

(6) [10 marks] If A and B are languages, define A

(6) [10 marks] If A and B are languages, define A o B = {xy | X E A and y e B and x] = [y]}. Show that if A and B are regular languages, then Ao B is a CFL. (hint: prove by formally constructing a PDA, instead of trying to create a CFG)

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