Unformatted text preview: a 1 = a 2 = 1 a n +1 = a n + 2 a n-1 , for n ≥ 2 . a. Write out the ﬁrst 8 terms of the sequence. b. Guess an explicit formula for a n . Hint: Multiply the numbers you found in part ( a ) by 3. c. Prove that your formula is correct....
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- Fall '09
- Math, 1 k, Natural number, c., explicit formula, abstract math