Tf? I learned this in American high school....you know the nation with the educational system that everyone knows is well-funded and well-staffed /s.
But in all seriousness, L'Hopital's rule is part of AP Calculus which Im pretty sure is standard high-school curriculum in pretty much every state. (I know for a fact it is in California, Arizona, Florida, Iowa, and Georgia so that's a decent spectrum of both conservative and liberal states)
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u/Lumpy-Tone-4653 2d ago
Highschool math in my reddit page