Each of the following sums is the beginning of an arithmetic series. Find the nth term of each series, for the specified value of n. Homework Help ✎
(−2) + (−5) + (−8) + ..., n = 12
9 + 15 + 21 + ..., n = 20
How is this sequence progressing?
How can you use that to determine what the 12th term will be?
Use the same method as part (a).