I wanna to know the meaning of this ({a}∪{b})*

Question

determine whether the string aabaa is in each of the following languages ({a}∪{b})* ..

Answer 1

You are trying to find the union of two sets...

 

 

put all of the elements in the first set AND ALL of the elements in

the second set , REMOVING THE DUPLICATED, into one big set.

 

Then see if that given element is in there