Answer Happy

Hand Draw the following bode plots
Gc(s)G(s) = 1 / ((1 +
0.25s)(1 + 3s))
Gc(s)G(s) = 5(s2 + 1.4s +
1) / (s – 1)2
Gc(s)G(s) = (s – 8) / (s2
+ 6s + 8)
Gc(s)G(s) = 20(s +
8) / (s(s +2)(s + 2))