I'm a beaver.
You're a beaver.
We are beavers all.
And when we get together,
we do the beaver call!
E to the u du dx,
E to the x, dx.
Cosine, secant, tangent,
sine,
3 point 1 4 1 5 9.
Integral, radical, mu, dv
Slipstick, sliderule, MIT!