3,216 reputation
2729
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location Buenos Aires, Argentina
age 20
visits member for 3 years, 5 months
seen 13 hours ago

(my about me is currently blank)


May
17
asked Confused about Wikipedia page on differential forms
May
13
awarded  Fanatic
May
4
accepted How to prove $\lim_{(x,y)\to(0,0)} \frac{xy}{x+y} = 0$
May
4
comment How to prove $\lim_{(x,y)\to(0,0)} \frac{xy}{x+y} = 0$
I guess this is a simpler way to know. How did you think of approaching along $y=x^2-x$?
May
4
comment How to prove $\lim_{(x,y)\to(0,0)} \frac{xy}{x+y} = 0$
@ArturoMagidin: Oh, I thought you could just sort of ignore it. This means that the limit doesn't exist, then?
May
4
comment How to prove $\lim_{(x,y)\to(0,0)} \frac{xy}{x+y} = 0$
@Dylan: Well, the function is not even defined along that line. Does that matter?
May
4
asked How to prove $\lim_{(x,y)\to(0,0)} \frac{xy}{x+y} = 0$
Apr
30
comment Can I apply Rolle's theorem in reverse?
Thank you for your answer. While it helped me with the problem, David's answered the point of the question, so I accepted his. Thank you anyway.
Apr
30
accepted Can I apply Rolle's theorem in reverse?
Apr
30
comment Can I apply Rolle's theorem in reverse?
@ArturoMagidin: I fixed the intervals.
Apr
30
revised Can I apply Rolle's theorem in reverse?
fixed intervals
Apr
30
asked Can I apply Rolle's theorem in reverse?
Apr
30
comment Natural Logarithm and Integral Properties
@GiovanniDeGaetano: It looks like the whole point of the exercise is to prove that $(\ln x)' = \frac1{x}$, and establish its properties.
Apr
27
accepted Proving statement about sequences
Apr
27
comment Limit inside an integral
No, $\int \ \mathrm{d}x = x + C$.
Apr
27
comment Limit inside an integral
@AbdelmajidKhadari: You're missing an $x$ after integrating.
Apr
27
asked Proving statement about sequences
Apr
25
comment Calculating derivative of $\operatorname{Log}(z)$
Differentiate both sides of the first equation, maybe?
Apr
19
comment How to find the Maclurin Series with using the procedure method for $ f(x)=\sqrt{1+2x} $
Shouldn't the limit of the sum be $n$, not $\infty$?
Apr
14
accepted Proving limit doesn't exist using the $\epsilon$-$\delta$ definition