Table of contents
- 0. Review of Algebra(0)
- 1. Equations & Inequalities(0)
- 2. Graphs of Equations(0)
- 3. Functions(0)
- 4. Polynomial Functions(0)
- 5. Rational Functions(0)
- 6. Exponential & Logarithmic Functions(0)
- 7. Systems of Equations & Matrices(0)
- 8. Conic Sections(0)
- 9. Sequences, Series, & Induction(0)
- 10. Combinatorics & Probability(0)
9. Sequences, Series, & Induction
Arithmetic Sequences
9. Sequences, Series, & Induction
Arithmetic Sequences: Study with Video Lessons, Practice Problems & Examples
4PRACTICE PROBLEM
Identify the first four terms and the last term. Also, evaluate the sum using the formula Sn = (n/2)(a1 + an).
![Summation formula for an arithmetic sequence from i=1 to 21 of (7i + 2).](https://lightcat-files.s3.amazonaws.com/problem_images/752faed1e312c3aa-1672039023741.jpg)
Identify the first four terms and the last term. Also, evaluate the sum using the formula Sn = (n/2)(a1 + an).