CFG Doubt

Question

S->A | B

A→ ε

B->aBb

B->b

what is the complement of the language of this grammar?

Answer 1

..............

Comments

then should it be bb*aa*?
@srestha

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@srestha mam, In abhishek's answer , 'b' is also not in complement. both $n,m \geq 1$ here. everything is correct acc to me. @aditi19 it will not give bab which should be in complement of the language. ryt ?

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ok