Below are four pairs of functions, labeled f and g. For each, determine constants a and no such that for all n > no, a· f(n) > g(n). Give a clear argument as to why your choice of no and a satisfy the conditions. а. f(n) — 2n + 3, g(n) — 5n b. f(n) = 2n + 3, g(n) = 5n + log(n) c. f(n) = n'/4, g(n) = log(n) %3D d. f(n) = n, g(n) = (log2 n)ª

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Can someone help me with part d?

**Part 3: Big-Oh? K.**

**Suggested reading:** Sections 2.1 and 2.2 of *Algorithm Design*.

Below are four pairs of functions, labeled \( f \) and \( g \). For each, determine constants \( a \) and \( n_0 \) such that for all \( n \geq n_0 \), \( a \cdot f(n) \geq g(n) \). Give a clear argument as to why your choice of \( n_0 \) and \( a \) satisfy the conditions.

**a.** \( f(n) = 2n + 3, \, g(n) = 5n \)

**b.** \( f(n) = 2n + 3, \, g(n) = 5n + \log(n) \)

**c.** \( f(n) = n^{1/4}, \, g(n) = \log(n) \)

**d.** \( f(n) = n, \, g(n) = (\log_2 n)^4 \)

**e.** \( f(n) = n^3, \, g(n) = 6n + 1 \)

**Hint:** you may assume that for all \( x > 0 \), \( \log(x) < x \).
Transcribed Image Text:**Part 3: Big-Oh? K.** **Suggested reading:** Sections 2.1 and 2.2 of *Algorithm Design*. Below are four pairs of functions, labeled \( f \) and \( g \). For each, determine constants \( a \) and \( n_0 \) such that for all \( n \geq n_0 \), \( a \cdot f(n) \geq g(n) \). Give a clear argument as to why your choice of \( n_0 \) and \( a \) satisfy the conditions. **a.** \( f(n) = 2n + 3, \, g(n) = 5n \) **b.** \( f(n) = 2n + 3, \, g(n) = 5n + \log(n) \) **c.** \( f(n) = n^{1/4}, \, g(n) = \log(n) \) **d.** \( f(n) = n, \, g(n) = (\log_2 n)^4 \) **e.** \( f(n) = n^3, \, g(n) = 6n + 1 \) **Hint:** you may assume that for all \( x > 0 \), \( \log(x) < x \).
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