Geometric Series - Sum to Infinity : ExamSolutions

[ragheneration]

thanks really helped! do you know of a channel like this but about physics by any chance? :D

[ExamSolutions]

@ragheneration Sorry, no

[justinenadia05]

What program did you use to do this?

[Sunlightphil]

~ WOW ~ Thank You :)

[thebest1870]

thanks for the help your great!! got c2 on the 26th and you have been of massive help

[ExamSolutions]

@thebest1870 Thanks - hope it goes well for you.

[ThePsycheoutFanClub]

The more i think about it the more it seems like some one is walking towards a point and every time he reaches half the distance, the distance he needs to travel doubles or he gets half the size and thus his steps are coving half the distance as before. So every time he travels 5 meters of 10 meters he needs to travel he shrinks then after he travels another 2.5 meters he shrinks then after 1.25 he shrinks and this keeps on going till infinity. If that is so wouldn't the actual value be x<24?

[ThePsycheoutFanClub]

@ThePsycheoutFanClub I mean, it would definitely be tempting to say he traveled exactly 10 meters because the thought of "going on till infinity" would make you think he would have reached the destination at some point, but the truth is that he will always be an infinite fraction away from the destination at all times no mater how longer he walked his steps would just shrink again, know what i mean?

[jony1710]

Thank You!!!!!!!!!

[ExamSolutions]

@jony1710 you are most welcome

[ilovepie181]

I shit myself at the pure brainossity of this equation

[Alexraza1]

ah ok, thanks for the quick response. I have a C2 exam in a week, and your videos are proving excellent additional sources for my revision, and I commend what you are doing.

Thanks a lot for your help, you're a great teacher!

[ExamSolutions]

@Alexraza1 Thank you - most kind

[Alexraza1]

So if there was a question asking us to proof the sum to infinity formula, then would we have to show all the working out on the left, or solely the working out on the right of the line , e.g if -1 < r <1 etc

[ExamSolutions]

@Alexraza1 I would show the part on the right

[aVeryAngryDuck]

Thanks!

[ExamSolutions]

Thanks - pleased I could help you.

[amyyanwatse]

Great video thank you so much:) you explain everything so clearly! better than my teacher actually xD