adplus-dvertising
frame-decoration

Question

(a+b)* is equivalent to

a.

b*a*

b.

(a*b*)*

c.

a*b*

d.

none of the mentioned

Answer: (b).(a*b*)*

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. (a+b)* is equivalent to

Similar Questions

Discover Related MCQs

Q. ΦL is equivalent to

Q. Which of the following pair of regular expression are not equivalent?

Q. Consider following regular expression

i) (a/b)*
ii) (a*/b*)*
iii) ((ϵ/a)b*)*

Which of the following statements is correct

Q. What kind of expressions do we used for pattern matching?

Q. Which of the following do Regexps do not find their use in?

Q. Which of the following languages have built in regexps support?

Q. The following is/are an approach to process a regexp:

Q. Are the given two patterns equivalent?
(1) gray|grey

(2) gr(a|e)y

Q. Which of the following are not quantifiers?

Q. Which of the following cannot be used to decide whether and how a given regexp matches a string:

Q. Conversion of a regular expression into its corresponding NFA :

Q. Which among the following is not a UNIX command for regular expressions?

Q. What is the significance of $ used in regular expression in UNIX?

Q. Generate the regular expression to match blank lines

Q. For the given syntax of sed, which among the following is not a correct option?
General syntax of sed: /pattern/action

Q. What does grep do in UNIX?

Q. State true or false:
Statement: A regular expression is a sequence of characters that represent a pattern.

Q. Which of the following options support the given statement?
Statement: A regular expression could be a fixed word or describe something like more general.

Q. What does the following segment of code does?
grep -i man heroes.txt

Q. What does “X?” do regular expression operator?