Evan Hu

Sophomore studying EE/CS. This year I'm also taking CS 162, NUSCTX 10, the Game Design and Development DeCal and an SCET class called Metaverses, NFTs and Creator Economies on the Blockchain! 

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HW4 5 Questions:
1. 11.5) What exactly is meant by the enumeration of the rationals?
2. For 12.12a, I tried for a while to prove the last inequality (limsup sigma_n <= limsup s_n) but couldnt find a way, does anyone have any advice?
3. How do you calculate the limit of n!^(1/n)?
4. What is the proof for 1/n diverging?
5. How is Cauchy criterion most used in proofs? Where does its usefulness lie?

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