SOLUTION: Find the sum of the first five terms of the series 1 + 8 + 64 + 512 + .......

Question 93775This question is from textbook
: Find the sum of the first five terms of the series
1 + 8 + 64 + 512 + ....... This question is from textbook

Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
This is a geometric series ... 1 x 8 = 8 ... 8 x 8 = 64 ... and so forth
Sum = a(1 - r^n)/(1 - r) where: r is the rate, a is the first term, and n is the number of terms
Sum = (1 - 8^5)/(1 - 8) = -32,767/-7 = 4,681
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