3. Topic 3(COLON) Sequences, Series and Summation

Lesson 3.1: Standard Summation Formulae — Quiz

Test your understanding of lesson 3.1: standard summation formulae with 5 practice questions.

Practice Questions

Question 1

What is the formula for the sum of the first $n$ natural numbers, denoted as $\Sigma r$?

Question 2

What does $\Sigma r^2$ represent?

Question 3

What is the formula for $\Sigma r^3$?

Question 4

If $n = 5$, what is the value of $\Sigma r^2$?

Question 5

Using the method of differences, how would you express $\Sigma_{r=1}^{n} (2r + 1)$?