Paper 1 · Functions and Graphs

Functions and Graphs 10

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Learning work

For \(n\to\infty\): divide every term by the highest power of n; \(\text{const}/n^k\to 0\)
The sum/product/quotient limit rules apply only when \(x\to\) a constant, NOT \(x\to\infty\)

2025 Paper 1 Q10(a)(iv) — limit at infinity of an exponential approach. The decaying exponential goes to 0; the co…
2025 Paper 1 Q10(d)(iii) — limit at infinity for a rational function (degree-2 over degree-2)
2023 Paper 1 Q2(b) — limit at infinity of a sum of three pieces
2023 Paper 1 Q9(a) — substitute t = 0 into the model
2022 Paper 1 Q5(b) — limit at infinity of an exponential function

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