Answer
The formula is:
$(-1)^{k}$$\frac{k}{k+1}$
For all positive k integers.
Work Step by Step
When k=0, 1, 2, 3, 4; we get 0, -1/2, 2/3, -3/4, and 4/5 respectively.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.