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May
14
awarded  Caucus
Sep
28
awarded  Supporter
Sep
27
comment Find the sum to n terms of the series $\displaystyle \frac{1} {1.2.3.4} + \frac{1} {2.3.4.5} + \frac{1} {3.4.5.6} $
You challenged my tex skills :) Try to expand expression for example for n=3, you will see that second addend for "k" is the same but with opposite sign as first addend for "k+1".
Sep
27
revised Find the sum to n terms of the series $\displaystyle \frac{1} {1.2.3.4} + \frac{1} {2.3.4.5} + \frac{1} {3.4.5.6} $
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Sep
27
comment Find the sum to n terms of the series $\displaystyle \frac{1} {1.2.3.4} + \frac{1} {2.3.4.5} + \frac{1} {3.4.5.6} $
Fixed typo in last expression. Is it ok now?
Sep
27
revised Find the sum to n terms of the series $\displaystyle \frac{1} {1.2.3.4} + \frac{1} {2.3.4.5} + \frac{1} {3.4.5.6} $
edit last term in 1 to n sum
Sep
27
awarded  Editor
Sep
27
comment Find the sum to n terms of the series $\displaystyle \frac{1} {1.2.3.4} + \frac{1} {2.3.4.5} + \frac{1} {3.4.5.6} $
@Moron Thank for your comment
Sep
27
revised Find the sum to n terms of the series $\displaystyle \frac{1} {1.2.3.4} + \frac{1} {2.3.4.5} + \frac{1} {3.4.5.6} $
added 166 characters in body
Sep
27
awarded  Teacher
Sep
27
answered Find the sum to n terms of the series $\displaystyle \frac{1} {1.2.3.4} + \frac{1} {2.3.4.5} + \frac{1} {3.4.5.6} $