RLC$-$CIRCUIT

Find the steady$-$state current $I(t)$ in the $RLC-$circuit in Fig. $275,$ where $R=10,L=1H,C={10}^{-1}F$ and with $E(t)V$ as follows and periodic with period $2.$ Graph or sketch the first four partial sums. Note that the coefficients of the solution decrease rapidly. Hint. Remember that the ODE contains $E^{\text{'}}(t),$ not $E(t)$

$2.$