How To Derive The Sum Formula of a Geometric Series

This video explains how to derive the formula that gives you the sum of a finite geometric series and the sum formula for an infinite geometric series. This video also explains the difference between a geometric sequence and a geometric series as well as how to determine the common ratio.

_______________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
_______________________________________________________________________________________________

[maarinahope]

My lecture actually left us with this question of how to derive the formula. I didn't even know where to start 😢. You are a life saver . Thank you

[ashy]

I've got an exam 3 hours from now. Binge-watching your vids really helped me prep. Thank you sir, you're a legend!

[parthpopli]

Bro this guys is definitely a polymath, genius

[zahraashrafzade]

This way of learning math is what I do love. Thanks for the amazing teaching!

[utilizator]

Nice demonstration of the sum formula of a geometric series. The only demonstration I have known before implies polynomial divison.

[SnehaSingh-]

Amazing video, after watching so many of these, I've finally understood that sum of infinite series one!
Thank you so much sir!

[islamwaled]

11:50
Literally mind blowing
You are amazing, man

[waltergnerre]

1:00 minute of the video and I got the concept, thank you🙌🏼

[zacharytapalgo]

If u ever need help in math this guy will always pop up

[princekhadka]

I was stucked again and here is my saviour❤❤❤❤

[MathZoneKH]

Congratulations 🎈🍾 for more than 3M subs

[danicalauriquez]

hello. Good day. Can I ask for permission from you to let use your video in my unit plan.
For educational purposes only.

[Idkwtdwmlrnayd]

I couldn't make it to the class the day my teacher taught this the class. I have an exam in two days. Thanks for the video

[youssofasiry]

Could you please tell us witch program do you use for totirial.

[bhargavasaie]

Thank you for posting It's very helpfull

[eugene]

I get that the General Formula works, and how it is derived. but not sure why it is multiplied by r (or -r). Why did someone decide to then add the 2 formulas. The arthmetic series formula and how it is derived makes so much more sense.

[iaminthenowhereinn]

Hello, may I ask why r is multiplied to the series...?

[zulawindsor]

How we can find the Polynomial
(Suppose it called P ) Where we find that function P is a composite of function P and P (PoP =P )🤯🤯??

[bcolsant]

At 9:44 why do you add the two equations? What do those last three steps represent?

[malanhemal]

what' s the reason it's multiplied by r?