Have the schematic:
Solving using MathCAD:
There is an error in my equations with nodal analysis but I can't find where? May anyone help me?
I also add the solution using approach of series RLC circuit:
But it seems to be A1 and A2 constant sign is incorrect comparing my result with that in textbook.
I also tried to solve with Laplace but using Mesh Current Method, my equations are (I1 - left mesh current, I2 - right):
But same thing - I can't get properly result, may be something wrong but I can't understand what!