Question

For the language L = {acnb | n > 0 }, which one of the following strings is not a part of the language ?

Answer 1

$L ={ a nb | n > 0 }$ is the given language. (acnb doesn't make any sense, hence I am assuming there is a blank space in place of c).

Hence $anb, \forall n<0$ are the strings which are not part of the language.