@phyzguy Your solution seems correct, but shouldn't I find the initial conditions before opening the switch? That's how it worked for all the other exercises: I find the ODE on t>0 and solve it, and then the constants from the initial conditions on t = 0-
Homework Statement
FIND i(t).
[/B]Homework Equations
VL = L*(di/dt) (Equation 1)
IC = C*(dV/dt) (Equation 2)
I(t) = e^-9*t*(A*cos(4.359*t) + B*sen(4.359*t)) A (Equation 3)
The Attempt at a Solution
I can get the exact value of the constant B as shown in the answer if I use -6 after the...