Like what you saw?
Create FREE Account and:
 Watch all FREE content in 21 subjects(388 videos for 23 hours)
 FREE advice on how to get better grades at school from an expert
 Attend and watch FREE live webinar on useful topics
Arithmetic Series  Problem 11
Alissa Fong
Alissa Fong
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
An arithmetic sequence is a number pattern where there is a constant difference, d, that is added to get from one term to the next. Here we look at arithmetic series, or sums, presented in sigma notation, where the d value is fractional. In order to use a shortcut formula, you'll need to know the value of d and what the first term in the number pattern is. If you can't tell from looking at the Sigma notation, then plug in the first few integers until you can recognize the pattern.
Transcript Coming Soon!
Please enter your name.
Are you sure you want to delete this comment?
Alissa Fong
M.A. in Secondary Mathematics, Stanford University
B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
Your tutorials are good and you have a personality as well. I hope you have more advanced college level stuff, because I like the way you teach.”
Thanks alot for such great lectures... I never found learning this easier ever before... keep up the great work.... :)”
You seem so kind, it's awesome. Easier to learn from people who seem to be rooting for ya!' thanks”
Concept (1)
Sample Problems (12)
Need help with a problem?
Watch expert teachers solve similar problems.

Arithmetic Series
Problem 1 7,525 viewsFind S_{40}
3 + 7 + 11 + 15 + ... 
Arithmetic Series
Problem 2 6,135 views3 + 3 + 0 + ... 30 2 
Arithmetic Series
Problem 3 5,822 views_{20} ∑(1 − 2i) ^{i = 0} 
Arithmetic Series
Problem 4 5,437 viewsHow many terms in 5 + 7 + 9 + ... must be added to make 572.

Arithmetic Series
Problem 5 748 views 
Arithmetic Series
Problem 6 776 views 
Arithmetic Series
Problem 8 876 views 
Arithmetic Series
Problem 9 694 views 
Arithmetic Series
Problem 10 687 views 
Arithmetic Series
Problem 11 748 views 
Arithmetic Series
Problem 12 661 views 
Arithmetic Series
Problem 13 766 views
Comments (0)
Please Sign in or Sign up to add your comment.
·
Delete