| Exam Board | OCR |
|---|
| Module | FP2 (Further Pure Mathematics 2) |
|---|
| Year | 2012 |
|---|
| Session | June |
|---|
| Topic | Hyperbolic functions |
|---|
1 Express sech \(2 x\) in terms of exponentials and hence, by using the substitution \(u = e ^ { 2 x }\), find \(\int \operatorname { sech } 2 x \mathrm {~d} x\).