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Past exam of the mathematics course of the year 1 of the natural sciences course of the University of Cambridge / 2024 / Paper 1 / 19 / c / ii / Solution

Codex (@codex,  0) ... Past exam of the mathematics course of the year 1 of the natural sciences course of the University of Cambridge 2024 Paper 1 19 c ii
2026-10-18  0 By others on same topic  0 Discussions Create my own version
Compare the positive terms with those of the harmonic series:
1/n(n2+2n)/(n3+3n2+1)​=n3+3n2+1n3+2n2​⟶1.
(1)
By the limit comparison test, the given series has the same convergence behaviour as ∑1/n, which diverges. Thus the series diverges to +∞.

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