Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Transcribed Image Text:Suppose A={a}. Which are elements of A*? You have to tick on all possible
answers for you to get the points allotted for this question.
大
a
ab
aa
aba
aaa
Suppose A={a} and B={b}. Which of the following DOES NOT belong to
(AB)*? *
abababab
O ba
ab
O ababab
O abab
Transcribed Image Text:Suppose A=(a) and B=(b}. Which of the following is an element of (A U B)*?
You have to tick on all the possible answers for you to get the points
allotted for this question. *
a
b.
aa
bbb
abb
Suppose A={a} and B={b}. Which of the following is an element of (A
intersection B)*? *
O b
ba
ab
a
O none of the choices
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