Learn how to find the sum of a geometric sequence and the formula used. See examples of geometric sum equations and how to find the sum of a geometric series.

Sep 20, 2021 · Welcome to Mathematics SE. Take a tour. You'll find that simple "Here's the statement of my question, solve it for me" posts will be poorly received. What is better is for you to add context …

Learn how to use the sum of an infinite geometric series formula in this 5-minute video lesson. Enhance your math skills by taking a quiz for practice.

Define what a geometric series is and compare finite and infinite series. Using examples, learn the geometric series formula and how to solve geometric series.

Learn how to find the partial sum of a geometric series and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

The limit of the partial sums is the more rigorous way. You have to worry about convergence of the infinite sums to begin with otherwise. And doing it that way, you get an intermediate formula for the …

Learn how to find the sum of a finite geometric series here, and see examples that walk through sample problems step-by-step for you to improve your series knowledge and skills.

Feb 11, 2018 · Deepak's excellent answer is the standard argument. I will give (essentially) the same argument here, but a slightly different presentation. What I like about this argument, in comparison to …

Jan 31, 2016 · Non-infinite geometric sum; does not start at 0 or 1 Ask Question Asked 9 years, 10 months ago Modified 2 years, 7 months ago

Jun 28, 2018 · unless you assume the convergence of $\sum_ {n=0}^\infty ar^n$ (because assume it diverges, then $\sum_ {n=0}^\infty ar^n$ is undefined. Can you do arithmetic with undefined objects?).