# Mario De León Urbina

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bio website location Costa Rica age 25 member for 2 years, 6 months seen Mar 3 at 3:11 profile views 221

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

# 92 Actions

 Feb20 answered Proving $U_{\varepsilon}(a)\cap V_{\varepsilon}(b)=\emptyset$ Jan29 accepted Teaching irrational numbers? Jan22 revised Prove $2^n\cdot n! ≤ (n+1)^n$ by induction. [Edit removed during grace period] Jan22 answered Prove $2^n\cdot n! ≤ (n+1)^n$ by induction. Jan20 accepted Question about $f$ continuous function with these conditions? Jan20 answered The ratio of two numbers is $7$ to $5$. The sum of the numbers is $24$. What are the numbers? Jan20 asked Teaching irrational numbers? Jan20 answered How to factorize $2x^2+5x+3$? Jan16 answered Determine $\lim_{(x, y)\to (0, 0)}\frac{-x+y+1}{x^2-y^2}$ Jan16 answered Binomial theorem for non integers ? O_o ?? Jan16 revised Where is a flaw in these logical implications? added 191 characters in body Jan16 answered Where is a flaw in these logical implications? Jan16 comment Where is a flaw in these logical implications? How did you derived that \$a