Finding The Sum of a Finite Geometric Series

This calculus video tutorial explains how to find the sum of a finite geometric series using a simple formula. This video contains plenty of examples and practice problems including example problems in the form of a geometric sequence of partial sums and in the form of sigma notation or summation notation. The finite sum of a sequence is known as the partial sum of a sequence.

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[aadilmiller]

thankx man really appreciate that. and(if I'm not being too greedy) can you make another video on the same topic but on geometric finite series word problems(tricky ones) thank you

[mikebalubar]

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[hluke]

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.

[urlyrc]

in 3:41 how it can be 15 at the end, when the ratio is 3? doesn't it was 13 after 10?

[tomstafford]

When I learn formulas I spend a good few minutes working out *why* the formula functions to solve the problem. Now using it like written calculator, but really trying to recognise the reason it works. I cannot for the life of me work out *why* this equation works -- just that it does.

[vangiematias]

Hi where did the 3 came from At time -3:10

[jananajae]

Yo I really don't get the part where you multiplied the rational and geometric sum like how?

[barashoacademy]

Iam requesting to explain begin logic thanks

[irisbutterfly]

This video is really helpful but man I had it to 2x speed the whole time

[cedricsusmena]

hello, may I ask? how do you get that 27(1- 4 .587x10 raise to -15?

[marcosahagun]

How do you find the sum if the series is alternating?

[Shecallsmedave]

1+4+16+64+.... And if you total them its 85-1 84 but if you solve them using that its Please reply