Determine the Partial Sum of an Arithmetic Series Given in Sigma Notation

This video explains how to determine the sum of a finite arithmetic series given in sigma notation.

[lana]

4 different tries to complete a sum like this, 4 different videos and this is the only one which led me to the right answer. Thank you so much

[sunnycai]

Very clear, so easy to understand, thank you!

[Tacothecow]

Thank you soooo much for saying d is 3, I couldn't find that anywhere!

[aikawarazu]

Thank you! This has been the most helpful video I found so far.

[MsMechanicalMuwe]

Thank you so much😭🙏🏽 you’ve saved my grades

[Rukiii]

What would happen if the "formula" is a whole number? Like it just says for example (555) and not like your example which is (n²+1)? does that mean I have to times the number from the given to 555?

[문주-in]

I tried to finding this for my IXL Thank you so much!!

[Cosmic_peper]

Thanks so much for the help dude, you just earned a like and a new subscriber!

[sabersteel]

This was so helpful 👍! Thank you very much!

[Iknowmuffin]

Holy fuck this was so helpful. Thank u!

[karsten]

during 3:43 wouldn't a sub 40 be 122 instead of 182?

[omermuharremyagcioglu]

tnx and we can chainge of indicis...1 to 40 and (2+3(n+20))