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Tricky differential
Hey, I need help with the following total differential
In principle, I need to differentiate H wrt $\displaystyle q_0$, $\displaystyle t_{WA_c}$, $\displaystyle t_{A_cA}$, and $\displaystyle t_{EC}$. The problem are the differentials wrt $\displaystyle t_{WA_c}$ and $\displaystyle t_{EC}$. I cannot substitute c(s) simply.
$\displaystyle H \equiv q_0  \int_{t_{WA_c}}^{t_{A_cA}} \psi(s) \frac{1\Psi(c(s))}{1\Psi(s)} ds$
s.t. $\displaystyle c(s)= t_{EC} + \int_{t_{WA_c}}^{s} \frac{1\Psi(t)}{2} \frac{\phi(t)}{\phi(c(t))} dt$

Re: Tricky differential
I cannot comment on the problem itself, but wrap your LaTeX in $$.