Question: 2. (20 points) Prove the following statements using Strong Induction. (a) A postage of n cents can be formed using just 4 and 7 cent

2. (20 points) Prove the following statements using Strong Induction. (a) A postage of n cents can be formed using just 4 and 7 cent stamps. (b) A sequence an is defined recursively as follows: n=1 a,- 8, Prove that an3 21+2. (-1)
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