Question: Let r 1 , r 2 , and r 3 by three regular expressions. Show that the language associated with ( r 1 + r

Let r1,r2, and r3 by three regular expressions. Show that the language associated with (r1+r2)r3 is the same as the language associated with r1r2+r1r3. Show that r1(r2+r3) is equivalent to (r1+r2)r3. This will be the same as proving a "distributive law" for regular expressions.
Let r1,r2, and r3 by three regular expressions. Show that the

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