Convergence of $\sum_{n=1}^\infty \dfrac{1}{n!}$.

[antoniovandre]

 

[tkhunny]

That must have hurt a little. Note: [math]\dfrac{1}{x(x-1)} = \dfrac{1}{x-1} - \dfrac{1}{x}[/math]

 

[Deleted member 4993]

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What is your question? - in english please!

 

[antoniovandre]

What is your question? - in english please!
View attachment 16241

No one, it's Just a article.

 

[pka]

No one, it's Just a article.

What sort of an answer is that?
If you want feedback on your work from here then post in English.
This is an English language website.

 

[HallsofIvy]

No one, it's Just a article.

Then why did you post it? In order to understand the notation, a person would have had to have taken a Calculus course, and all that would have been covered.