How to take log on both side of the equation.

Am unable to take log on both side of the equation am wirting.

%PART (b) ---> Equation 3

syms I(t) N Mu Gamma Vo V(t) %Used to decalre variables as symbol

I(t) = Io*exp(-Mu*t);

ode = diff(V,t) == Mu.*N.*I(t) - Gamma.*V(t); %Equation Writing

cond = V(0) == Vo; %Initial condition

Solution_eq3 = dsolve(ode, cond) %Solution the the modified equation == Solution to the IVP

The answer i get to the solution_eq3 gives me an answer for which i would like to get a simplified expression by taking log.