Arithmetic Sequence

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Mr H Tutoring

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🤯 being a person who is not good at math but trying to understand and learn. This was the most logical thing I have ever come across and I'm happy that i don't have to memorize formulas like in school but instead I can think through the problem logically

dhrumil

Great video. But in India, this kind of math is taught in the 10th standard in a chapter named "Arithmetic Progressions".

rwb

Exellent teacher, how teachers can't be like him?

sproutssupport

Arithmetic progression is my favourite chapter

tantrikbabaji

thanks teacher for that formula.It's so perfect

WilliamWilberforce-bjgy

you have two points x_0 = 7 and x_4 = 23. You can fit a line, with gradient (23-7) / 4 = 4.
The equation of a line is y = mx + c. The discrete equation of a line is x_0 = y, x_n = m + x_(n - 1).
This means a working arithmetic solution is x_0 = 7, x_n = 4 + x_(n-1).
Therefore, the 89'th term is 7 + 4 * 89 = 356

jffrysith

English is actually my 3rd language and I understand your teaching, thank you sir🎉

ilhamwahyudihakimilham

That 4d 1st time seen..i used 2 do that a long term process..awesome

freelove

How would anyone even think this up. It’s like magic

marksd

This concept are what used for algorithm in computer im interested in maths once again

kingsgambit

You explained that so well! I remember first leaning that formula from a book in high school and just memorizing it. But I absorbed it more in the few minutes you went through that it was seem less and clear🕹️thank you for posting!

chilton

This has always been so difficult to understand. Great lesson!

popcornparker

Interesting knowledge. Now I wonder where it applies to applied it, sense it was expensive to

guillermobuenohernandez

It took me a while to realize this was about simple arithmetic sequence. Most sequences I come across are not arithmetic... ones like the Fibonacci sequence. Finding the 89th term of that takes "a bit more work." :D

laurendoe