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Unformatted text preview: r ( t ) = 3 cos(2 t ) u ( t ) when K = 1 . 2 3. Consider the control system shown below with C ( s ) = K and G ( s ) = s + 4 s ( s + 2) . r ( t ) y ( t ) C ( s ) G ( s ) +(a) [30 pts] Accurately sketch the root locus of the system. (b) [10 pts] Find the value of K so that s =1 is a pole of the closedloop system. 3...
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 Spring '08
 KHAN
 Control Engineering, pts, 10 pts, 15 pts

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