Hi Max: Can you please take a look at this question? https://web2.0calc.com/questions/please-help_49961
In an arithmetic sequence, the sum of the second and eighth terms is 5, and the product of the fourth and fifth terms is also 5.
What is the 20th term of this sequence?
I think heureka solved this problem in a detailed manner in this post here:
https://web2.0calc.com/questions/the-powers-of-coffee-in-mathematicians#r2