1. Give a regular expression for the following languages: (a) L = {a"bm :n≥4, m≤3}. (b) L = {a"bm : n≥1, m≥1, nm ≥3}. (c) L = {ab"w: n ≥3, w € {a, b} +}.

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Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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1. Give a regular expression for the following languages:
(a) L = {a¹bm:n≥4,m≤3}.
(b) L = {a¹bm : n≥1, m≥1, nm ≥3}.
(c) L = {ab¹w : n ≥ 3, w € {a, b} +}.
(d) L = {w € {0, 1} * : w has exactly one pair of consecutive zeros}.
(e) L = {w E {0, 1} + : w ends with 01}.
(f) L {w E {0, 1}+: no(w) = even}. Where no(w) is the number of 0's in
W}
Transcribed Image Text:1. Give a regular expression for the following languages: (a) L = {a¹bm:n≥4,m≤3}. (b) L = {a¹bm : n≥1, m≥1, nm ≥3}. (c) L = {ab¹w : n ≥ 3, w € {a, b} +}. (d) L = {w € {0, 1} * : w has exactly one pair of consecutive zeros}. (e) L = {w E {0, 1} + : w ends with 01}. (f) L {w E {0, 1}+: no(w) = even}. Where no(w) is the number of 0's in W}
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