2: Consider the electrical circult below, where the switch has been opened for a long time. At t=0 the switch is closed. please (a)calculate Its initial condition, V_(C)(0^(-))before the switch is closed; (b) develop its mathamatica model using differential equation approach for t > 0. Please, assume {:[R_(1)=200 Omega","R_(2)=200 Omega","R_(3)=600 Omega","],[C=100mF", and "V_(s)=10V],[R_(1)quad+quad1quadV]:} Ors sumR_(2)=CsumR_(3)