Sketch the polar plot of the frequency response for the following transfer functions:

{a)

{b)

{e)

{d)

1 KG(s) = (1 + 0.5s)(1 + 2s)

KG(s) = (1 + 0.5s)

s2 KG(s) = s + 10 s2 + 6s + 10 KG(s) = 30(s + 8)

s(s + 2)(s + 4)

Problem