Mario De León Urbina
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# 46 Posts

 Dec 12 asked How can I determine the center of this circumference? Nov 25 answered Find the value of $\sqrt{10\sqrt{10\sqrt{10…}}}$ Nov 5 asked Better substitution calculating integral? Oct 31 asked Am I doing something wrong with this improper integral? Oct 29 asked Calculating indefinite integral? Jul 20 answered Examples of interesting integrable functions with at least 2 fixed points and an explicit inverse Jul 1 asked Solving logarithmic equation? Jun 3 asked I need a help with this limit? May 26 asked How do I $n\lambda ^n$ tends to $0$? May 13 asked Continuous function is $0$ for all real number? Apr 14 asked If $x + \frac{1}{x} = k$, what's the value of this sum? Mar 12 answered Exponential equation with one 'trouble' term Feb 20 answered Proving $U_{\varepsilon}(a)\cap V_{\varepsilon}(b)=\emptyset$ Jan 22 answered Prove $2^n\cdot n! ≤ (n+1)^n$ by induction. 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 answered Where is a flaw in these logical implications?