Story time
(1/3)
As an undergrad, I remember seeing the proof for the antiderivative of sec(x).
The key of the proof is to cleverly multiply by sec(x)+tan(x)/sec(x)+tan(x), and pop goes the weasel.pic.twitter.com/Y0iIzvBFFR
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I'm teaching ODEs this summer, we're doing this on Thursday :D
sec(x) + tan(x) returned itself times sec(x)
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But then they'd find me and they can't know I have Twitter. How else will I be able to talk about them behind their back
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kids these days will always find you
End of conversation
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