Suppose that L, is a regular language and L, is a context-free language. Which one of the following languages is NOT necessarily context-free? (a) L L2 (c) L,- L2 (b) L, ULz (d) L, n Lz

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Suppose thatL, is a regular language and L, is a context-free language. Which one
of the following languages is NOT necessarily context-free?
(a) L, L2
(c) L,- L2
(b) L,ULz
(d) L, n Lz
Transcribed Image Text:Suppose thatL, is a regular language and L, is a context-free language. Which one of the following languages is NOT necessarily context-free? (a) L, L2 (c) L,- L2 (b) L,ULz (d) L, n Lz
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