Problem 1. List the first 3 strings of the following languages: a) L = {b"aa: n ≥ 2} b) L= {a" cb": n ≥ 0} c) L = {(bab)": n ≥ 0}

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Problem 1. List the first 3 strings of the following languages:
a) L = {b"aa: n ≥ 2}
b) L = {a" cb": n ≥ 0}
c) L = {(bab)": n ≥ 0}
d) L = {abwba: w € {a,b}"}
e) L = {a³n bam:n, m≥ 1}
f) L = {w: w E E' and E= {a,b} and |w|mod 3 = 0}
g) L = {w₁aaw₂: w₁ E {a,b}" and w₂ € {c,d}"}
h) L = {w: w E E' and Σ = {a,b} and Na(w) mod 3 = 2 and N₂(w) ≥ 0}
i) L = {waw: w € [+ and Σ = {x,y}}
Transcribed Image Text:Problem 1. List the first 3 strings of the following languages: a) L = {b"aa: n ≥ 2} b) L = {a" cb": n ≥ 0} c) L = {(bab)": n ≥ 0} d) L = {abwba: w € {a,b}"} e) L = {a³n bam:n, m≥ 1} f) L = {w: w E E' and E= {a,b} and |w|mod 3 = 0} g) L = {w₁aaw₂: w₁ E {a,b}" and w₂ € {c,d}"} h) L = {w: w E E' and Σ = {a,b} and Na(w) mod 3 = 2 and N₂(w) ≥ 0} i) L = {waw: w € [+ and Σ = {x,y}}
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