Expressing the sum using sum notation of a geometric series

👉 Learn how to write the sum from a geometric series. A series is the sum of the terms of a sequence. A geometric series is the sum of the terms of a geometric sequence. The formula for the sum of n terms of a geometric sequence is given by Sn = a[(r^n - 1)/(r - 1)], where a is the first term, n is the term number and r is the common ratio. To write the sum we will either be given the series as a sum or written in sigma notation. Either way, we will need to determine the rule of the sum by identifying the common ratio and first term. 👏SUBSCRIBE to my channel here: https://www.youtube.com/user/mrbrianm... ❤️Support my channel by becoming a member:    / @brianmclogan   🙋‍♂️Have questions? Ask here: https://forms.gle/dfR9HbCu6qpWbJdo7 🎉Follow the Community:    / mrbrianmclogan   Organized Videos: ✅Series    • Series   ✅Series | Learn About    • Series | Learn About   ✅Find the Sum of the Arithmetic Series    • Find the Sum of the Arithmetic Series   ✅Find the Sum of the Geometric Series    • Find the Sum of the Geometric Series   ✅Write the Rule of the Geometric Series    • Write the Rule of the Geometric Series   ✅Find the Sum of a Series    • Find the Sum of a Series   ✅Write the Rule of the Series    • Write the Rule of the Series   🗂️ Organized playlists by classes here:    / mrbrianmclogan   🌐 My Website - http://www.freemathvideos.com 🎯Survive Math Class Checklist: Ten Steps to a Better Year: https://www.brianmclogan.com/email-ca... Connect with me: ⚡️Facebook -   / freemathvideos   ⚡️Instagram -   / brianmclogan   ⚡️Twitter -   / mrbrianmclogan   ⚡️Linkedin -   / brian-mclogan-16b43623   👨‍🏫 Current Courses on Udemy: https://www.udemy.com/user/brianmclog... 👨‍👩‍👧‍👧 About Me: I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips. Find more here: https://www.freemathvideos.com/about-me/ #series #brianmclogan