ACT Math Prep Algebra: Geometric Series
In this ACT Math prep video, we get into the topic of geometric sequences and series. A geometric series occurs when numbers in a multiplication pattern are added together. When there are few terms in a geometric series to add up, it is easy to use a basic calculator. When you need to add up a lot of terms, a formula can to be used to quickly get the sum.
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Video Contents:
0:00 ACT Math Practice Problem
0:34 Geometric Series
1:33 Understanding the Problem
2:08 Strategies for Solving the Problem
2:42 First Way: Use Partial Sums to Predict the Total
4:49 Second Way: Use the Sum Formula of a Geometric Series
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The example used in the video is based off this ACT math problem:
https://imgur.com/ov50BTG
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