Partial Sum Arithmetic Sequence

I introduce the formula for finding the sum of 'n' terms of an arithmetic sequence. I then work through several examples.
For all my lessons on Sequences and Series go here:)

[profrobbob]

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[profrobbob]

You're welcome...and sorry I missed your comment. Thanks for supporting by subscribing too, I hope you will continue to enjoy learning from my channel:)

[profrobbob]

Thank you for watching:)...and spreading the word!

[profrobbob]

Thank you for liking the way I teach, my videos and supporting by subscribing!

[profrobbob]

You're welcome...and thanks for the nice comment! As long as students keep watching and subscribing and my channel keeps growing, I will keep posting! Thanks for choosing Tarrou's Chalk Talk to learn from:)

[athenalim]

I've been absent for 2 executive days at school. I am clueless of what our Math topic is and good thing I found this! oh god. LIFESAVER. I swear. Thank you for this. I really find it very useful!

[georgesadler]

Professor RobBob, thank you for another incredible video/lecture on Patial Sum Arithmetic Sequence in Algebra Two/College Algebra/ Precalculus. All students should quickly realize that Arithmetic Sequence and Partial Sums work together. Mathematics, Physics and Chemistry are full of formulas.

[profrobbob]

@Jiwoo15 Your welcome:) I am posting 5 tonight...so keep checking!

[profrobbob]

Thank you:) Thank you too for subscribing...I appreciate your support!

[profrobbob]

THANK YOU for supporting by liking and subscribing! (even if it isn't hair or fashion...lol:) Although if you watch enough videos you'll see that "my" fashion sense is mainly composed of funny shirts:)

[profrobbob]

You find most of my subject playlists on the front page of my channel and the rest by clicking playlist near the top. But if you are looking for a video instead of a playlist, there is a magnifying glass under the banner of my channel's homepage you can click and a search just my channel. Or if just searching on the YouTube search window, put Tarrou or profrobbob along with the topic you are looking for. Are you asking in general or looking for something specific right now?

[profrobbob]

Thank you for watching and liking my videos...so glad I could clear things up for you in one video:)...You know what that means?...you need to continue to make me your go-to YouTube math teacher!:D

[profrobbob]

I am not sure where in the video you are referring to.

[profrobbob]

Your welcome:) I am posting 5 tonight...so keep checking!

[nickallenray]

Thank you so much! I love your enthusiasm! You are very helpful and have a lot of character! Keep doing great videos like these!

[profrobbob]

Thank you:) Hope you enjoyed the lesson too!

[mairenefaithg.exclamador]

Hi, just wanna ask.

What if the n is equal to 7 so it can't be divided into two.
How could I solve it? Can you explain, please? Thanks

For example: S7= 7 divided by 2 (A1 + An).

[ihatedrake]

you never let me down bro thanks for the last example was kinda confused till i saw your video and BAMMM#%*!!! now i got it :)

[SmilingAleksandra]

Great thanks from Ukraine!
You're becoming globally popular with your amazing way of teaching:)
I will try to pass maths exam this year. Getting ready by myself, so having so problems..
Could you help me please, I don't get it 21+23+25+..+(2n-1) =800, n - ?

[mfzeeke]

thank you for the math help. how can i easily find topics of your youtube page