SOLUTION: Hello, I am having trouble with my homework and I am really getting frustrated. I don't know what section this would be under, but the question goes under geometric sequence. Ho

Algebra ->  Exponents -> SOLUTION: Hello, I am having trouble with my homework and I am really getting frustrated. I don't know what section this would be under, but the question goes under geometric sequence. Ho      Log On


   



Question 988171: Hello, I am having trouble with my homework and I am really getting frustrated. I don't know what section this would be under, but the question goes under geometric sequence.
How many terms are in the following sequence?
1, 3, 3^2,3^3,...., 3^80. I am using the formula a base n=a*r^(n-1)
Please help!!!

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Eighty-one terms, BY INSPECTION.