| Exam Board | OCR MEI |
|---|
| Module | C2 (Core Mathematics 2) |
|---|
| Year | 2005 |
|---|
| Session | June |
|---|
| Topic | Differentiation Applications |
|---|
| Type | Find stationary points |
|---|
4 A curve has equation \(y = x + \frac { 1 } { x }\).
Use calculus to show that the curve has a turning point at \(x = 1\).
Show also that this point is a minimum.