Determining nth term and sum of a geometric series

For the series 𝟐+𝟔+𝟏𝟖+…

0:00 Find the 8th term
1:23 Find the sum of the first 8 terms.

In this example, we will need to determine that the series is geometric where each term is a particular number multiplied by the previous term.

The multiple is called the common ratio and is usually denoted by r.

Students are provided a reference sheet with formulas to assist (link below).

- - - - - - - - -
- - - - - - - - -
▶︎ Instagram: @askcaasi
▶︎ TikTok: @askcaasi
▶︎ Twitter: @askcaasi
▶︎ Facebook: askcaasi