(a) Show that the collection of decidable languages is closed under concatenation. (b) Show that the collection of Turing-recognizable languages is closed under intersection. Show transcribed image text (a) Show that the collection of decidable languages is closed under concatenation. (b) Show that the collection of Turing-recognizable languages is closed under intersection.
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Answer to (a) Show that the collection of decidable languages is closed under concatenation. (b) Show that the collection of Turin…