Mario De León Urbina

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769 reputation
311
bio website
location Costa Rica
age 25
visits member for 2 years, 11 months
seen Jul 9 at 18:09

I'm bachelor of Math Teaching and Economics student in the UCR. I love maths. $\sqrt { God} = love $


Jan
29
accepted Teaching irrational numbers?
Jan
22
revised Prove $2^n\cdot n! ≤ (n+1)^n$ by induction.
[Edit removed during grace period]
Jan
22
answered Prove $2^n\cdot n! ≤ (n+1)^n$ by induction.
Jan
20
accepted Question about $f$ continuous function with these conditions?
Jan
20
answered The ratio of two numbers is $7$ to $5$. The sum of the numbers is $24$. What are the numbers?
Jan
20
asked Teaching irrational numbers?
Jan
20
answered How to factorize $2x^2+5x+3$?
Jan
16
answered Determine $\lim_{(x, y)\to (0, 0)}\frac{-x+y+1}{x^2-y^2}$
Jan
16
answered Binomial theorem for non integers ? O_o ??
Jan
16
revised Where is a flaw in these logical implications?
added 191 characters in body
Jan
16
answered Where is a flaw in these logical implications?
Jan
16
comment Where is a flaw in these logical implications?
How did you derived that $a<x$?
Jan
15
comment How do I prove a bound on the sum of volumes of disjoint rectangles in an oblique rectangle?
Maybe consult "A concise introduction to the Theory of Integration" by Daniel Stroock.
Jan
15
comment Calculate a hard limit
$x$ is a natural number?
Jan
15
asked Exponential equations solving methods?
Jan
15
revised Exponential equation+derivative
added 397 characters in body
Jan
9
answered Pedagogy: How to cure students of the “law of universal linearity”?
Jan
9
answered Why is $\tan((1/2)\pi)$ undefined?
Jan
8
revised Exponential equation+derivative
added 149 characters in body
Jan
8
answered Exponential equation+derivative