Math Help - Tricky differential

1. Tricky differential

Hey, I need help with the following total differential

In principle, I need to differentiate H wrt $q_0$, $t_{WA_c}$, $t_{A_cA}$, and $t_{EC}$. The problem are the differentials wrt $t_{WA_c}$ and $t_{EC}$. I cannot substitute c(s) simply.

$H \equiv q_0 - \int_{t_{WA_c}}^{t_{A_cA}} \psi(s) \frac{1-\Psi(c(s))}{1-\Psi(s)} ds$

s.t. $c(s)= t_{EC} + \int_{t_{WA_c}}^{s} \frac{1-\Psi(t)}{2} \frac{\phi(t)}{\phi(c(t))} dt$

2. Re: Tricky differential

I cannot comment on the problem itself, but wrap your LaTeX in .