| Exam Board | OCR MEI |
|---|---|
| Module | C2 (Core Mathematics 2) |
| Marks | 2 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Arithmetic Sequences and Series |
| Type | Sigma notation: direct numerical evaluation |
| Difficulty | Easy -1.8 This is a straightforward calculation requiring only direct substitution into the sigma notation: 2³ + 3³ + 4³ + 5³ = 8 + 27 + 64 + 125 = 224. It tests basic understanding of sigma notation and cube calculations with no problem-solving or algebraic manipulation required, making it significantly easier than average A-level questions. |
| Spec | 1.04g Sigma notation: for sums of series4.06a Summation formulae: sum of r, r^2, r^3 |
Question 5:
M1 for $2^3 + 3^3 + 4^3 + 5^3$
A1 for 2245 Find the numerical value of $\sum _ { k = 2 } ^ { 5 } k ^ { 3 }$.
\hfill \mbox{\textit{OCR MEI C2 Q5 [2]}}