Leonardo
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 Oct 20 comment Tallest bubble tower induction proof I know how the induction part works, the question is how do I use the inductive hypothesis to show the $n+1$ case = $1 + \sqrt{n+1}$? It is not obvious to me. Oct 20 revised Tallest bubble tower induction proof maximum radii relationship proof Oct 20 asked Tallest bubble tower induction proof Oct 6 comment Can a subset have $0$ elements? The empty set is a subset of all sets. Aug 30 awarded Yearling Aug 12 comment How do I know what to substitute to simplify a limit? Very interesting, thank you for elaborating that. Aug 12 accepted How do I know what to substitute to simplify a limit? Aug 12 comment How do I know what to substitute to simplify a limit? This is strange, I thought I could only do that if $t$ approaches infinity. I could have divided the exponents in the original form without substitution and the answer is indeed $2/3$ but I thought it was the wrong method. Aug 12 asked How do I know what to substitute to simplify a limit? Aug 9 accepted What is another, perhaps quicker and nicer way of solving this question? Aug 9 comment What is another, perhaps quicker and nicer way of solving this question? I really like the way you approach it, always nice to see things from a more focused perspective. Aug 9 asked What is another, perhaps quicker and nicer way of solving this question? Aug 8 answered Help with Geometry (sphere) question Aug 7 awarded Disciplined Jul 22 accepted How would you interpret this question focusing on problem solving? Jul 22 comment How would you interpret this question focusing on problem solving? Yeah that clarifies things greatly, I realized that a more rectangle looking shape would make a non-perpendicular. Jul 22 asked How would you interpret this question focusing on problem solving? Jul 8 accepted Finding points of intersection between a line and a curve Jul 8 comment Finding points of intersection between a line and a curve Thanks for confirming, the question is probably not the same as this is from my memory. Jul 8 asked Finding points of intersection between a line and a curve