# Problem 01 | Separation of Variables

### My Ph.D. instructor told me

My Ph.D. instructor told me "how did you get ln c?", how can I explain this?

### $r(t) = r_0$ is also a

$r(t) = r_0$ is also a solution

### Whre did u get lnc? Im

Whre did u get lnc? Im confused

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