Mario De León Urbina

422 reputation

I'm student of Math Teaching and Economics in the UCR. I love maths, specially Real Analysis. I'm here to learn more and more.

	422 reputation	bio	website		visits	member for	1 year, 9 months
28 badges		location	Costa Rica		seen	Apr 17 at 17:20

57 Actions

Mar 8	accepted	What's the solution of the functional equation?
Feb 10	asked	Counterexample?
Feb 5	asked	What's the solution of the functional equation?
Dec 26	comment	how to calculate area of the image attached If you assume that segments are parallel, then, you can divide in trapezoids and take the length of the heights, to calculate the respective areas. Finally, substract them.
Dec 20	accepted	What's the derivative of $f(x)^{g(x)}$?
Dec 6	comment	Show $f$ is bounded on $[a,\infty)$ if continuous there and $\lim\limits_{x\to\infty}f(x)$ exists Let be $\varepsilon = 1$.
Dec 5	asked	What's the derivative of $f(x)^{g(x)}$?
Nov 28	answered	Showing that $ e^{2x^2} + 2e^{x^2} + 2 = (e^{x^2} + 1)^2 + 1$
Aug 18	awarded	Yearling
Jul 22	awarded	Good Question
Jun 25	awarded	Teacher
Jun 25	asked	Point on a line with the least distance from another point in $\mathbb{R}^3$
Jun 6	accepted	Integer points in a curve?
Jun 3	revised	Integer points in a curve? added 512 characters in body
Jun 3	awarded	Editor
Jun 3	revised	Integer points in a curve? added 147 characters in body
Jun 3	comment	Integer points in a curve? Please, edit my question because I'm terrible with my english...
Jun 3	asked	Integer points in a curve?
May 30	accepted	Subgroups of $\mathbb{Z}$?
May 28	comment	Subgroups of $\mathbb{Z}$? Yes, I know. But I need explicitly gcd