The switch sw shown in the circuit diagram of Figure 4.8 has been opened for a long time. At t = a = 0, the sw closes and remains closed for t ≥ 0. Assume that all the initial conditions are zero. Determine by hand an expression for i(t). Create the script fle analysis_RLC that returns i(t) using the LT, and obtain plots of i(t) versus t for t ≥ 0, using a numerical and symbolic approach. Also obtain the symbolic expression fot i(t), for t ≥ 0, using Laplace for the case when the sw closes at t = a = 1.