Question

What are the first three terms of the Arithmetic Sequence an = 11 – 3(n – 1)?

Answer 1

Answer:First three terms: 11,20,29 .

Explanation:

Write a systems of equations. tn=a+(n−1)d. sn=n2 (2a+(n−1)d). So,. 110=11+(n−1)d 726=n2(22+(n−1)d).

I hope this is right