Question: Consider a unity feedlach system with the loop transfer function Develop an m-file to plot the bandwidth of the closed- loop system as K varies

Consider a unity feedlach system with the loop transfer function

L(s)=G(s)G(s): = K(s + 25) s(s+10)(s+20)

Develop an m-file to plot the bandwidth of the closed- loop system as K varies in the interval 1 ≤ K ≤ 80. 

L(s)=G(s)G(s): = K(s + 25) s(s+10)(s+20)

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