## Finding The Sum of an Infinite Geometric Series

This calculus video tutorial explains how to find the sum of an infinite geometric series by identifying the first term and the common ratio. The examples and practice problems are presented using sigma notation or summation notation.

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15:27 why is 9 outside? Why isn't in the numerator??

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I understood everything in the first 3 minutes, this is a very helpful video

why can you not find the sum if the common ratio is higher than 1

Can you please explain how you come to the exponential number at the end?

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https://youtu.be/rzoAC6DtZWQ

At 5:50 WHY DID YOU MULTIPLY BY 5 RANDOMLY????? YOU GAVE NO EXPLANATION. WHERE DID THE 5 COME FROM?????

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I need your help with this problem : The second term of a sequence is 17 and the sum of the first six terms is 147

: Determine the first three terms and the nth term. ..

Please help me. …if you have a video referring to this problem may you please give me the link.

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Could someone explain why, in the first example, he multiplied the whole equation by 2? When getting the sum

Owwww so that's how you do it

I didnt get the (8)²

I didnt get the (8)²

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tangina

Hello i have a question, if the ratio is above 1, can you or can you not get a sum?

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how did you get the 2?

in the last sum i thought the ones being raised to the power of n is the common ratio

Why is it regarded to infinite when its end is known

Thank you so much, I finally understand what I'm suppose to do.

how did he get the 2-1?