| Exam Board | CAIE |
|---|---|
| Module | FP1 (Further Pure Mathematics 1) |
| Year | 2013 |
| Session | June |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Proof by induction |
2 Prove by mathematical induction that $5 ^ { 2 n } - 1$ is divisible by 8 for every positive integer $n$.
\hfill \mbox{\textit{CAIE FP1 2013 Q2}}