i forgot how you do a differential equation, i have the solutions. I want to know how you do the dΨ/dx
i thought it would just be dΨ/dx= -A/ke-kx Its been a long summer lol
Homework Statement
Well this is a physics problem, need find the potential function
Homework Equations
\Psi =Axe-kx A and k are constants
I need to find d2 \Psi/dx2
The Attempt at a Solution
I thought u would just take the derivative two times
but just d\Psi/dx = Ae-kx-kAxe-kx...