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Assume that R . S . and Tare regular expressions and is the empty string and is the empty set. Select all the identities of

Assume that R

.

.

and Tare regular expressions and is the empty string and is the empty set. Select all the identities of that are correct

=

E E

=

E R

.

+ =

* * (

.

) * .

=

. (

.

) * (

* * =

*

= * +

.

* =

* (

+ 5) * = (

" .

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