SOLUTION: evaluate each geometric series described http://prntscr.com/sg4tmc

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Question 1159038: evaluate each geometric series described
http://prntscr.com/sg4tmc
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
23.


sum%28-2+%281%2F5%29%5E%28i+-+1%29%2Ci=1%2C9+%29+

=
=
=-976562%2F390625
=-2.49999872


24.
sum%282%28-6%29%5E%28i-1%29%2Ci=1%2C7+%29+


=
=
=79982