| Exam Board | OCR |
|---|---|
| Module | C3 (Core Mathematics 3) |
| Year | 2010 |
| Session | January |
| Marks | 3 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Standard Integrals and Reverse Chain Rule |
| Type | Reverse chain rule with linear composite |
| Difficulty | Moderate -0.8 This is a straightforward integration by inspection/substitution of a power function. Students need only recognize the chain rule pattern and apply the reverse chain rule formula, requiring minimal steps for 3 marks. Easier than average as it's a direct application of a standard technique with no problem-solving element. |
| Spec | 1.08c Integrate e^(kx), 1/x, sin(kx), cos(kx) |
Find $\int \frac{10}{(2x - 7)^2} \, dx$. [3]
\hfill \mbox{\textit{OCR C3 2010 Q1 [3]}}