| Exam Board | OCR MEI |
|---|---|
| Module | C1 (Core Mathematics 1) |
| Year | 2009 |
| Session | June |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Topic | Binomial Theorem (positive integer n) |
| Type | Standard binomial expansion coefficient |
| Difficulty | Easy -1.3 This is a straightforward binomial theorem question testing basic recall and application. Part (i) is direct calculation of a combination, and part (ii) is a standard textbook exercise requiring the binomial coefficient formula with no problem-solving or insight needed. Both parts are routine C1-level exercises with minimal steps. |
| Spec | 1.04a Binomial expansion: (a+b)^n for positive integer n |
\begin{enumerate}[label=(\roman*)]
\item Calculate $^5C_3$. [2]
\item Find the coefficient of $x^3$ in the expansion of $(1 + 2x)^5$. [2]
\end{enumerate}
\hfill \mbox{\textit{OCR MEI C1 2009 Q5 [4]}}