Find the best answers to your questions with the help of IDNLearn.com's expert contributors. Our platform is designed to provide trustworthy and thorough answers to any questions you may have.
Answer:
[tex]a_{97}[/tex] = - 1247
Step-by-step explanation:
I think you copied the problem incorrectly. The sequence as it stands is not arithmetic. Instead of the first term being -1, maybe it should be +1. Then we have a common difference of -13. So, that is what I will presume to be true.
The formula to use is
[tex]a_{n} = a_{1} + (n - 1)d[/tex]
d = -13
[tex]a_{97}[/tex] = 1 + (97 - 1)(-13)
= 1 + 96(-13)
= 1 - 1248
= - 1247