| Exam Board | OCR MEI |
|---|---|
| Module | C1 (Core Mathematics 1) |
| Year | 2012 |
| Session | June |
| Marks | 5 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Binomial Theorem (positive integer n) |
| Type | Standard binomial expansion coefficient |
| Difficulty | Moderate -0.8 This is a straightforward binomial theorem question requiring only direct application of formulas. Part (i) is simple combination calculation, and part (ii) is a standard textbook exercise using the binomial expansion formula with no problem-solving or insight required. The low mark allocation (5 marks total) confirms its routine nature, making it easier than average. |
| Spec | 1.04a Binomial expansion: (a+b)^n for positive integer n1.04b Binomial probabilities: link to binomial expansion |
\begin{enumerate}[label=(\roman*)]
\item Evaluate $^5C_3$. [1]
\item Find the coefficient of $x^3$ in the expansion of $(3 - 2x)^5$. [4]
\end{enumerate}
\hfill \mbox{\textit{OCR MEI C1 2012 Q6 [5]}}