THEORY: I’ll make arctan out of u
My dear friend Jonah, a PhD candidate at the Brandeis Department of Mathematics, might be the most fun calculus teacher ever. Today, he wrote and sang a Mulan parody about the antiderivative of 1/(4+9x^2) for his calc students.
If ever there were a niche audience, it’s people who like calculus and post-1997 Disney, but you really can’t argue with lyrics like (spoiler alert) “resubstitute u to get the answer: one sixth arctan of three-halves x plus C”.
You can download and stream “I’ll make arctan out of u” here.