SOLUTION: find the sum of the infinite geometric series http://prntscr.com/sg32q2

Question 1159032: find the sum of the infinite geometric series
http://prntscr.com/sg32q2
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

c.
........the series has positive and negative elements, check for conditional absolute convergence->converges (absolutely )
=

d.
...apply the constant multiplication rule
= .......apply series geometric test:
=
=

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