| Exam Board | OCR MEI |
|---|---|
| Module | C2 (Core Mathematics 2) |
| Year | 2012 |
| Session | January |
| Marks | 2 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Arithmetic Sequences and Series |
| Type | Sigma notation: direct numerical evaluation |
| Difficulty | Easy -1.2 This is a straightforward sigma notation evaluation requiring only substitution of r=3,4,5,6 into r(r+2) and addition of four terms. It's simpler than average A-level questions as it involves basic arithmetic with no algebraic manipulation, formula derivation, or problem-solving insight needed. |
| Spec | 1.04g Sigma notation: for sums of series |
1 Find $\sum _ { r = 3 } ^ { 6 } r ( r + 2 )$.
\hfill \mbox{\textit{OCR MEI C2 2012 Q1 [2]}}