## [HW4 Q1.4]

## Summary

HW4, Q1.4: Not sure how to understand r=0 and to show`c_{max}`

## Details

- I cannot plug r=0 in the equation that I got from 1.3 because then all is 0 which makes sense bc the other BC states
`\frac{d\psi}{dr}\bigg|_{r=0}=0`

- I would also lose`R^{2}`

from the equation of`c_{max}`

. How should one proceed with this question?