| 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 -1.2 This is a straightforward sigma notation evaluation requiring only direct substitution of k=1 to 5 into the expression 1/(1+k) and adding five fractions. It tests basic understanding of sigma notation with minimal computational complexity and no problem-solving insight required. |
| Spec | 1.04g Sigma notation: for sums of series |
| Answer | Marks | Guidance |
|---|---|---|
| 1 | 1.45 o.e. | 2 |
Question 1:
1 | 1.45 o.e. | 2 | M1 for $1 + \frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6}$ oe1 Find $\sum _ { k = 1 } ^ { 5 } \frac { 1 } { 1 + k }$.
\hfill \mbox{\textit{OCR MEI C2 Q1 [2]}}