A-Level Maths: D4-06 Arithmetic Sequences: Introducing Arithmetic Series

[@mahamimran8770]

I was legit gonna cry in class today cause I didn’t understand anything, thanks man! I wish they just explained it like this... it made so much sense so fast.

[@drdankmeme2146]

I signed in for the purpose of leaving this comment. This dude is amazing, and the only thing I regret more is not being able to find this channel sooner. He’s unbelievable, I really hopes he hits his goals

[@boxingboxingboxing99]

Fully agree, he makes everything so much simpler. Fantastic teacher.

[@olliecole7163]

Nothing do I love more than when a concept is introduced with context and origins.

[@Jay-pf4bm]

maybe the kid was just writing lol loads of times and it ended up working

[@rubaetm5353]

Very fascinating that a child would come across this problems, just like any child, if you give a very hard, tedious questions, they will try to find a shortcut so that they can quickly finish off their work or homework and play outside.

[@Romo2055]

wan't just any kid! was Carl Freidrich Gauss - this guy basically like the newton of maths

[@avacyn2000]

An elementary school kid came up with this? I bet his teacher was dumbfounded lmao

[@helenday5031]

I am so grateful to have the Gauss thing explained so very clearly to me! I didn't understand the explanation in my text book. Now I can visualise it wonderfully clearly and see the structure of the idea very well. Thank you.

[@mattiacasaletto]

Thank's mate! Managed to understand this in a jiffy.

[@taureaa]

thank you!!!! was looking it at in the textbook and didnt understand it at all cuz i needed to see a walk through!

[@olivergilkes8804]

wow, didn't understand a thing in class but you just explained this perfectly whilst making it interesting by showing the proof and history of the equation. Thank you!

[@somtimesieat2411]

Thank you very much my teacher hardly explained it

[@jacobb7379]

Fantastic explanation. Thanks

[@Masowe.]

This is extremely hilarious, i am so glad i found you

[@kingdingeling9139]

Well presented, easy enough for a dummy like me to follow.

[@em8136]

is there a video on how that formula a+ (n-1)d is true

[@TLMaths]

I cover that in D4-01 sites.google.com/site/tlmaths314/home/a-level-maths-2017/full-a-level/sequences-series/arithmetic-sequences

[@samran4]

are you given this formulas for ocr mei, thanks alot sir u really help

[@TLMaths]

Yes. The formula booklet matches the Further Maths one up to and including page 4. ocr.org.uk/Images/308769-as-and-a-level-further-mathematics-b-mei-formulae-booklet.pdf

[@gabriellita7236]

Amazing explanation

[@engineeringmadeasy]

Does this proof work for Edexcel Exams board?

[@TLMaths]

Yep - the proof wouldn't change depending on exam board.

[@samh6814]

The only thing I’m a little confused on is the value of n. Why in that problem is it also 100?

[@TLMaths]

It has the numbers from 1 to 100, so there are one hundred numbers there, so there are one hundred 101s.

[@mayamikomelmia5511]

Thank you so much 🙏🏻

[@lilywhite602]

But why is L the nth term, I'm so confused

[@TLMaths]

If there are 100 terms in a series, then the 100th term must be the last term, so if there are n terms in a series, then the nth term must be the last term.

[@lilywhite602]

OOOO okay, thank you :)