Which of the following is true?...

MCQ

Which of the following is true?

Every subset of a regular set is regular

Every finite subset of non-regular set is regular

The union of two non regular set is not regular

Infinite union of finite set is regular

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(a+b)* is equivalent to

b*a*

(a*b*)*

a*b*

none of the mentioned

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MCQ

Which among the following looks similar to the given expression?((0+1). (0+1)) *

{x? {0,1} *|x is all binary number with even length}

{x? {0,1} |x is all binary number with even length}

{x? {0,1} *|x is all binary number with odd length}

{x? {0,1} |x is all binary number with odd length}

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MCQ

Which of the follwing options is incorrect?

A language L is regular if and only if ~L has finite number of equivalent classes.

Let be a regular Language. if ~L has k equivalent classes,then and DFA that recognizes L must have atmost k states

A language is L is NFA-regular if and only if it is DFA-regular

None of the mentioned

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MCQ

An FSM with

M can be transformed to Numeral relabeling its states

M can be transformed to N, merely relabeling its edges

Both of the mentioned

None of the mentioned

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MCQ

How many strings of length less than 4 contains the language described by the regular expression (x+y)*y(a+ab)*?

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