SOLUTION: Find the sum of each infinite geometric series 35. 4 -2 + 1 -1/2+... common ratio = -1/2 Sn = a/(1-r) = 4/(1--1/2) = 4x2/3 = 8/3=2.66... 36. -13 1/2 + 9- 6+...

Algebra ->  Sequences-and-series -> SOLUTION: Find the sum of each infinite geometric series 35. 4 -2 + 1 -1/2+... common ratio = -1/2 Sn = a/(1-r) = 4/(1--1/2) = 4x2/3 = 8/3=2.66... 36. -13 1/2 + 9- 6+...       Log On


   

Question 196908: Find the sum of each infinite geometric series

35. 4 -2 + 1 -1/2+...
common ratio = -1/2
Sn = a/(1-r)
= 4/(1--1/2)
= 4x2/3 = 8/3=2.66...
36. -13 1/2 + 9- 6+...
-13.5/(1+(2/3))
= 81/10 = 8.1
37. -5 -5/2 -5/2-...
-5/(1-1/2) = -10
Answer by mathsteacher(28) About Me  (Show Source):