| Exam Board | OCR MEI |
|---|---|
| Module | C2 (Core Mathematics 2) |
| Year | 2008 |
| Session | June |
| Marks | 3 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Laws of Logarithms |
| Type | Solve exponential equation using logarithms |
| Difficulty | Moderate -0.8 This is a straightforward application of logarithms to solve an exponential equation, requiring only taking logs of both sides and rearranging. It's a standard textbook exercise with a single technique and no problem-solving required, making it easier than average but not trivial since students must correctly apply the log laws. |
| Spec | 1.06g Equations with exponentials: solve a^x = b |
Use logarithms to solve the equation $5^x = 235$, giving your answer correct to 2 decimal places. [3]
\hfill \mbox{\textit{OCR MEI C2 2008 Q9 [3]}}