Question

What Language Does this expression represents ( (0 + 1) (0 + 1)*)* 00 (0 + 1)*

Answer 1

Since  

(0+1)(0+1)*=(0+1)+  => ((0+1)+)*=(0+1)*

Therefore resulting grammar will be like below

(0+1)*00(0+1)*=====> Contains atleast two consecutive zeros

Answer 2

it same as writing (0+1)*00(0+1)*

L contains strings with atleast 2 zeroes

Comments

Language having at least 2 consecutive zeroes.

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No atleast 2 zeroes can be 010 also ryt ?

But the answer should be string containing 2 zeroes

Answer 3

This RE represents a language containing 00 as a substring

Answer 4

L=( (0 + 1) (0 + 1)*)* 00 (0 + 1)*

L has all substring with atleast two zeros

Comments

can we say sir cantaining substring 00

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yes, all strings containing 00 as substring.

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yes all substring with atleast two consecutive  zeros .rt?