SOLUTION: Find S5 for the series -2 + -10 + -50 + -250 +...

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Question 1069940: Find S5 for the series -2 + -10 + -50 + -250 +...
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.
The next term is -1250, and the sum is

-2 + (-10) + (-50) + (-250) + (-1250) = -(2 + 10 + 50 + 250 + 1250).

So, it is not so difficult for you to calculate it.