ACE test series

Question

(00)*+0(00)*+00(000)* regular expression represents

Comments

it is equivalent to $L=0^*$

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 language will be like L =0^*  since we can generates every length string through  given Regular expresion .

Answer 1

it is able to generate all strings of 0 hence 0* is correct for it

(00)* is able to generate all even length string

0(00)* is able to generate all odd length string  1, 3 ,5 ,7 and so on .

00(000)*  is able to generate 2 ,5 , 8 which is already included in above .