topic badge
Hong Kong
Stage 4 - Stage 5

Geometric Series

Interactive practice questions

Consider the series $5+10+20$5+10+20 ...

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

Easy
Approx 3 minutes

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.

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.

Consider the geometric series $64+16+4$64+16+4$\ldots$

Find the sum of the first $7$7 terms.

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

What is Mathspace

About Mathspace