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A comment on Stacking Triangles for Fun and Profit. Parent comment

Re:Stacking Triangles for Fun and Profit by lupire on Thursday April 11, 2024 @11:50AM (#40003541)
When were you in Calc 101?

Before or after 2009?

https://forumgeom.fau.edu/FG2009volume9/FG200925.pdf

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Re:Stacking Triangles for Fun and Profit by Ensorceled on Thursday April 11, 2024 @12:33PM (#40004045)
Before. It was clearly circular since the identity was assumed, the calc prof might have acknowledged this at the time.
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