- #1
DieCommie
- 157
- 0
Homework Statement
[tex] \frac{d^2}{dz^2} [ (z^2) \(\frac{-(z-\frac{1}{z})^2}{20+8(z+\frac{1}{z})} \frac{1}{iz}] [/tex]
Homework Equations
The Attempt at a Solution
I have to do this by hand no calculators, CAS, or tables. I started by just expanding things and using the quotient rule, but it got real messy real fast. Any ideas?