Chapter 2, Problem 29P

The characteristic equation of a parallel RLC circuit Shown in Fig. P2.29 is given as

$s^2+\frac{1}{RC}s+\frac{1}{LC}=0$ (2.72)

It $R=200\Omega ,L=50$ mu, and $c=0.2\mu \text{F}$, solve the quadratic equation (2.72) for the values of s by the methods of completing the square and the quadratic formula