Ask a New Question

Find the sum of the first six terms of the geometric series 81 -27 +9 -...

how do you work it??

2 answers

just add up the 6 terms , it is probably easier than using the formula

81 - 27 + 9 - 3 + 1 - 1/3
= 182/3 or 60 2/3 or 60.6666..

thank you!!!

Ask a New Question or answer this question.

Similar Questions

Which of the following correctly uses the formula for the finite geometric series to derive the sum of the first seven terms of
1. 1 answer
Consider the infinite geometric series∑^(∞)_(n=1) −4(1/3)^n−1 . In this image, the lower limit of the summation notation
1. 2 answers
Describe an infinite geometric series with a beginning value of 2 that converges to 10. What are the first four terms of the
1. 2 answers
Find the sum of the geometric series 128 - 64 + 32 - . . . to 8 terms.a) 85 b) 225 c) 86 d) 85/2 e) not possible
1. 4 answers

more similar questions