Learning Goal: I’m working on a discrete math case study and need a sample draft to help me learn.
Identify each of the following states as true or false. Proof that your response is correct.
(a) n2 ∼ n2 + n
(b) 3n = O (2n)
(c) n = Θ ( 3n3
Required Problem Response
Replace this text with your response to this problem.
2n = O(1). (1)
False Proof. The proof is by induction on n where the induction hypothesis P(n) is the assertion
Base Case: P(0) holds trivially.
Inductive Step: We may assume P(n), so there is a constant c > 0 such that 2n ≤ c ⋅ 1.
2n+1 = 2 ⋅ 2n ≤ (2c) ⋅ 1,
which implies that 2n+1 = O(1). That is, P(n + 1) holds, which completes the proof of the
We conclude by induction that 2n = O(1) for all n. That is, the exponential function is bounded by
a constant. QED.
Identify a major mistake in the above False Proof.
Origenal question inside the pdf.
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