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Little explorations with HP calculators (no Prime)
04-07-2017, 09:26 PM
Post: #145
RE: Little explorations with the HP calculators
(04-07-2017 08:52 PM)Gerson W. Barbosa Wrote:  If I needed a proof, the your solution might have sufficed.

Although apparently only geometric solutions matter here, I think all approaches are valid as long they lead to the correct answer.

Two observations. I do believe (and also th Brilliant community does) that whatever the approach, if it leads to the solution and it is intelligible and not by chance, then it is valid. Just having a "trigonometry free" solution would be interesting (because harder, in general).

About the proof. I learned the hard way that showing the correct result may be a coincidence, while proving it is something different. If you just "prove" with a result it is like a proof by example, so, no proof.

This if I did not misunderstand you.

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RE: Little explorations with the HP calculators - pier4r - 04-07-2017 09:26 PM

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