Find $a_{1}$ for each arithmetic sequence. $$S_{20}=-1300, a_{20}=-122$$
Added by Michael M.
Step 1
4$$ However, since we are dealing with an arithmetic sequence, $a_{1}$ must be a whole number. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Joel Mueller and 80 other Calculus 2 / BC educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Sima S.
Further Topics in Algebra
Arithmetic Sequences and Series
Find $a_{1}$ and $d$ for each arithmetic sequence. $$S_{20}=1090, a_{20}=102$$
Recommended Textbooks
Calculus: Early Transcendentals
Thomas Calculus
Watch the video solution with this free unlock.
EMAIL
PASSWORD