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Question 12 5 pts John has an initial capital $ 1000 deposited into a bank account. The principal ($1000) earns interest at 10% per annum effective and the interests earn interest at 5% per annum effective. Let Sn be the balance at the end of the n-th year with So = 1000. 1. Write down a recursive formula (or a difference equation) for Sn, n = 1,2,3,..., i.e., express S, in terms of Sr-1. 2. Find an explicit expression for Sn. Upload Choose a File a o ! E