5. Topic 5(COLON) Sequences, Series and Financial Mathematics

Lesson 5.1: Sequences And Sigma Notation — Quiz

Test your understanding of lesson 5.1: sequences and sigma notation with 5 practice questions.

Practice Questions

Question 1

What is the 5th term of the arithmetic sequence defined by the formula $a_n = 3 + (n-1) \cdot 2$?

Question 2

If the first term of a geometric sequence is $4$ and the common ratio is $3$, what is the 3rd term?

Question 3

Using sigma notation, what is the sum of the first three terms of the sequence defined by $b_n = n^2$?

Question 4

What is the common ratio of the geometric sequence whose 2nd term is $16$ and 3rd term is $48$?

Question 5

If the recurrence relation for a sequence is defined by $a_n = 2 \cdot a_{n-1} + 1$ with $a_1 = 3$, what is $a_3$?