Proof of the Geometric Series Formula (Finite & Infinite)

[@noend.8257]

so is no one gonna talk about the description...

[@untappedpotential2761]

Great video but wtf is that description?

[@jbthesing1]

As a fellow math teacher and math major, this is really well done. Thank you!

[@ChristGodinyouItrust]

Thanks a lot John. It is especially nice to hear from qualified judges:)

[@jbthesing1]

@@ChristGodinyouItrust A student and I were looking over an application problem that required him to determine the infinite sum 1+2/3 + (2/3)^2+(2/3)^3... but we ran out of time so I sent him your video for homework this weekend. Thanks!

[@ChristGodinyouItrust]

@@jbthesing1 Thanks a bunch John. You're cool. I checked you out also, you are neat and nice family picture:)

[@konchu5221]

thank you! never feels satisfying to just be given a formula to use without ever seeing its proof 😅

[@yudong8820]

nice vd bro, cool cool cool!

[@Asif_I]

Thanks for clearing the doubt Cleared! I m solving JEE ADVANCED problem and. Got stuck after this video moved on ✌️

[@HarishBabuM]

Bro I'm in 10th, I need to know about JEE from star. Can you please explain me?

[@ziadmohamed4254]

When r > 1 what is the formula? + Thank you 👍

[@computerlover9290]

You better than khan academy

[@atarsingh3654]

Thankyou sir i from India 😊

[@rebeccahowell9531]

Advanced pre calc... I'm in calc BC lol and needed this

[@Petershd138]

Very useful video

[@KBineetPrasadPatro]

Thanks

[@littlerock2288]

Please solve it sir.... If x,y,z be the pth,qth and rth terms of a Geometric series respectively,prove that.. X*q-r * y*r-p * z*p-q=1

[@yudong8820]

man, did you solve it? you should type some brackets for your question though, it's a bit hard to read.

[@prateekg9888]

Thats quite easy Q.

[@ReyanG24]

bro wtf is the description

[@vrenelyjoynepomuceno8327]

What if the r value is equal or larger than 1?

[@kavithavelu8282]

The sum of infinite series become larger and larger and the answer would be infinity.... If it is between zero and one the answer would converge to a point...

[@estevaoalvaro8231]

Awesome!

[@function2]

Ok cool cool cool cool cool ...........................infinity

[@dilipdas2749]

The infinity formula is 1+2+3+4+5+6+7+8+9=12

[@dilipdas2749]

Okay

[@ChristGodinyouItrust]

I don't follow!

[@Tingwei883]

what is this

[@ChristGodinyouItrust]

@@Tingwei883 huh

[@sauravraj5271]

That's called Ramanujan infinite sum which is 1+2+3+4+5....∞ = -1/12

[@waleedal-darawsheh4216]

cool! cool! cool!

[@anisnabila8015]

hai can u help me 1. Certain medical conditions are treated with a fixed dose of a drug administered at regular intervals. Suppose that a person is given 2 milligrams of a drug day and that during each 24-hour period the body utilized 40% of the amount of drug that was present at the beginning of the period a)Show that the amount of the drug present in the body at the end of ndays is ∑_(i=1)^n▒〖2(0.6)^i 〗. b)What will be the approximate quality of the drug in the body at the end of each day after the treatment has been administered over a long period?

[@Samwatchmovie]

Thanks sir