[ ] How does this converge?

[ ] How did they take $e^{-3 \infty}$

[x] How to we maximize a function to find M for the error bound?
[x] Upper bound vs upper error bound
[x] How does this simplify to $2 \ln(x)$?

[x] Why do the limits of trig functions matter when we do trig sub
[x] How to get past the last step

[ ] How to get past the last step

[x] Why not do $\frac{Ax+B}{x^2} + \frac{C}{x-1}$?
