SOLUTION: Find the sum of the first 20 terms of the series 1 + 8 + 64 + 512 + ... Please help, I guess I am just unsure of the formula I should use for this...thanks

Algebra ->  Sequences-and-series -> SOLUTION: Find the sum of the first 20 terms of the series 1 + 8 + 64 + 512 + ... Please help, I guess I am just unsure of the formula I should use for this...thanks       Log On


   

Question 206718This question is from textbook algebra and trigonometry structure and method book 2
: Find the sum of the first 20 terms of the series
1 + 8 + 64 + 512 + ...
Please help, I guess I am just unsure of the formula I should use for this...thanks
 This question is from textbook algebra and trigonometry structure and method book 2

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Look here --> http://en.wikipedia.org/wiki/Geometric_progression