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## Which one of the following doesn’t generate same language as rest? (i) (a+b)*a(a+b)*a(a+b)* (ii) b * a b * a (a + b)* (iii) (a + b)* a b* a b* (iv) b * a (a + b)* a b*

All of regular expression are equal  and it genrate the language  at least two a's