iris
Post by YODL
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waxwing
It's simple but not easy :) I didn't find it, but to be fair I didn't really try, just looked up the answer after 5 minutes 😄
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YODL
Oh, wasn’t aware of the AM-GM inequality, not that I would have solved it had I known. Looks like it’s frequently used in Olympiad questions as it’s the first item listed in a study guide google found for olympiads. Met a guy who’d excelled in those, was very smart, but nothing extraordinary when it came to more general/abstract math (I’m prob jealous, still)
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waxwing
If you want a hint, try finding a way to apply AM-GM twice.
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YODL
I read the solution already, but that’s a solid hint. Kinda glad to have learned of the AM-GM ineq, feels like something I could have used once or twice in the past
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waxwing
Yeah. Another one that's very useful is the Cauchy-Schwartz inequality, gets used a ton in e.g. mathematical physics
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YODL
Ha, had to look it up to make sure I remembered that one.
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YODL
Btw, your write up on CTs is great. Been making some reading stops along the way of going through 02bp’s paper (and related things).
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