Intro to Geometric Progressions (2 of 3: Algebraic derivation of sum formula)

[achintyaranjan]

My maths teacher just gave us the formulas and asked us to solve questions, I hope he goes to hell and they ask him to do calculus with his blood. Mr. Woo you are a gem of this planet and you are a treasure to Australia.

[davidshiwlal]

I was now watching his ted talk. It was one of the best i ever saw

[NickKravitz]

out of focus camera makes me concentrate harder

[johnryder]

What software is he using for those animations?

[karviil]

I did this in high school, my teacher literally used 2mins teaching us this and we were like woww for another 1min, then she moved on to the next topic 😂😂

[kashishsharma]

Can u imagine if all teachers are like him 😂. I tried and I couldn't fathom all the possibilities. Hey google, call Dr strange...

[codezier]

I did this in highschool, forgot the formulas tho. But for people who say wish school should teach me how to do tax are too dumb to understand the application of these formulas. Knowing this should be basic math literacy.

[deans]

You failed to explain that this only works for functions that converge. You cannot use this method if the function doesn't converge to derive the formula.