SOLUTION: guess a simple formula for the sequence hat begin: -1, 1/2, -1/3, 1/4, -1/5

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Question 697086: guess a simple formula for the sequence hat begin: -1, 1/2, -1/3, 1/4, -1/5
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
When you have an alternating sign like
-,+,-,+,-, . . . etc. you get this with the
factor +%28-1%29%5En+ ,where +n+ is the
number of the term.
The denominator is just the number of the term,
so you get +%28-1%29%5En+%2F+n+