P. 437, exercise 9.7
From Bill Goodwine's Wiki
The second equation should be
<math>X(s) = \frac{80}{\left( s^2 + 2 s + 4 \right) \left( s + 20 \right)} \left( \frac{1}{s} \right). /math>
The second equation should be
<math>X(s) = \frac{80}{\left( s^2 + 2 s + 4 \right) \left( s + 20 \right)} \left( \frac{1}{s} \right). /math>