Question: discrete math problem... kinda need some help on this (20) 4a. Give a recursive definition of the set of positive integer powers of 3. That

discrete math problem... kinda need some help on this

(20) 4a. Give a recursive definition of the set of positive integer powers of 3. That is the set {3, 9, 27, 81,...} b. Let S be the set of bit strings defined recursively by: AES x111 if x e S What strings are in set S

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