1. The problem statement, all variables and given/known data find three independent solutions using complex exponentials, but express answer in real form. d^3(f(t))/dt^3 - f(t) = 0 2. Relevant equations 3. The attempt at a solution after taking the derivative of z = Ce^(rt) three times I put it in the following form: Ce^(rt)(r^3 -1) = 0 and solved for r: r^3 = 1 1 = e^(i*0) and so r = e^(i*0) = 1 1 is one of the solutions right? but I don't understand how it's possible to find 3 independent solutions to that differential equation.