Worked example: convergent geometric series | Series | AP Calculus BC | Khan Academy

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Sal evaluates the infinite geometric series 8+8/3+8/9+... Because the common ratio's absolute value is less than 1, the series converges to a finite number.

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Thanks for the efforts, it is a lot of help, much more than I learn in the semester..! However, I cannot find the video you are referring to at the time you say "If you are unfamiliar with that formula". I came here to find a url, but nothing.

yannisdran
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I cannot find the video where you derive the formula.

amymsims
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Im doing this in algebra, who would've thought

MrKingnick