There are 7 problems in this test. No calculators are allowed. Write down detailed steps for
the solution to each problem. Otherwise, no credits for that problem will be given.
申論題內容
2. Assume that a sequence of numbers is deined by x0 = 0, x1 = 1, and = ＞ 1. Find generating function for the sequence, and then find an explicit expression for un.
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＞ 1. Find generating function for the sequence, and then find an explicit expression for un.