Sums of series

Sums of series Quiz

Spec 4.3 · Edexcel A-Level Further Maths: Quiz

Studying this course? Keep your progress in one place.

Pick an answer for each. Quizzes never use energy.

5 questions, one answer each

Each answer is checked as you go, with why.

See all 5 questions

1. Find $\sum_{r=1}^{n}(2r+3)$ .
- A. $n^2+3n$
- B. $n^2+4n$
- C. $2n^2+3n$
- D. $n^2+n+3$
2. Find $\sum_{r=1}^{8}r^3$ .
- A. $204$
- B. $1024$
- C. $1152$
- D. $1296$
3. Find $\sum_{r=1}^{n}r(r-1)$ .
- A. $\frac13n(n-1)(n+1)$
- B. $\frac16n(n+1)(2n+1)$
- C. $\frac14n^2(n+1)^2$
- D. $\frac13n(n+1)(n+2)$
4. Find $\sum_{r=5}^{10}r^2$ .
- A. $385$
- B. $330$
- C. $355$
- D. $325$
5. Find the sum of the squares of the first 12 even positive integers.
- A. $650$
- B. $2600$
- C. $1300$
- D. $10400$