Suppose that h0, h1, h2,... is a sequence defined as follows: h0 = 1, h1 = 2, h2 = 3, hk
Chapter 5, Problem 8(choose chapter or problem)
Suppose that \(h_{0}, h_{1}, h_{2}\), . . . is a sequence defined as follows:
\(h_{0} = 1, h_{1} = 2, h_{2} = 3\),
\(h_{k} = h_{k−1} + h_{k−2} + h_{k−3}\) for all integers k ≥ 3.
a. Prove that \(h_{n} ≤ 3^{n}\) for all integers n ≥ 0.
b. Suppose that s is any real number such that \(s^{3} ≥ s^{2} + s + 1\). (This implies that s > 1.83.) Prove that \(h_{n} ≤ s^{n}\) for all n ≥ 2.
Text Transcription:
h_0, h_1, h_2
h_0 = 1, h_1 = 2, h_2 = 3
h_k = h_k−1 + h_k−2 + h_k−3
h_n ≤ 3^n
s^3 ≥ s^2 + s + 1
h_n ≤ s^n
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