L1={w∈{a,b}* | w starts with a} and L2={w∈{a,b}* | |w|≤ 3} then  | L1 ∩ L2 | = a) 15 b) infinity c) 7 d) 1

Operations Research : Applications and Algorithms
4th Edition
ISBN:9780534380588
Author:Wayne L. Winston
Publisher:Wayne L. Winston
Chapter19: Probabilistic Dynamic Programming
Section19.4: Further Examples Of Probabilistic Dynamic Programming Formulations
Problem 7P
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If L1={w∈{a,b}* | w starts with a} and L2={w∈{a,b}* | |w|≤ 3} then  | L1 ∩ L2 | =

a) 15

b) infinity

c) 7

d) 12

e) 8

f) 4

 

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