| Exam Board | OCR MEI |
|---|---|
| Module | C4 (Core Mathematics 4) |
| Year | 2007 |
| Session | January |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Partial Fractions |
| Type | Solve rational equation |
| Difficulty | Moderate -0.8 This is a straightforward rational equation requiring only algebraic manipulation: multiply through by the common denominator x(x+2), expand to get a quadratic, and solve. It's simpler than average A-level questions as it involves routine techniques with no conceptual challenges or multi-step reasoning. |
| Spec | 1.02k Simplify rational expressions: factorising, cancelling, algebraic division |
Solve the equation $\frac{1}{x} + \frac{1}{x-2} = 1$. [4]1 Solve the equation $\frac { 1 } { x } + \frac { x } { x + 2 } = 1$.
\hfill \mbox{\textit{OCR MEI C4 2007 Q1 [4]}}