CAPE Pure Mathematics Unit 2 · May/June 2017 · Paper 1 · Question Q17

Given that u_n represents the n^{\text{th}} term of a sequence, which of the following converges?

1. (A)u_n = 3n - 4
2. (B)u_n = \frac{5 - 3n}{2 - n}
3. (C)u_n = 2(-1)^{n-1}
4. (D)u_n = 5\left(\frac{4^{n-1}}{3^n}\right)