topic badge

5.04 Geometric series

Interactive practice questions

Find the sum of the first $5$5 terms of the geometric sequence defined by $a=2.187$a=2.187 and $r=1.134$r=1.134.

Give your answer correct to two decimal places.

Easy
2min

Find the sum of the first $5$5 terms of the geometric sequence defined by $a=-4.186$a=4.186 and $r=-2.848$r=2.848.

Give your answer correct to two decimal places.

Easy
2min

Consider the series $5+\frac{5}{2}+\frac{5}{4}$5+52+54 ...

Easy
2min

Consider the series $4+12+36$4+12+36 ...

Find the sum of the first $12$12 terms.

Medium
1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account

Outcomes

MA12-2

models and solves problems and makes informed decisions about financial situations using mathematical reasoning and techniques

MA12-4

applies the concepts and techniques of arithmetic and geometric sequences and series in the solution of problems

What is Mathspace

About Mathspace