What and why is step response REVIEW 9片 GSC()=？ 1 -(s+250n).1 C(s)=g+26@,s+ag^ss2+25@,s+o 十 e -50nt 20 G(s)= 2+4s+20 )sin() 32 G,(s)=g+8s+32 80 Step response G,(s)=g+8s+80 Arbitrary response ?What and why is step response ? REVIEW 1 R s( ) s  G s( ) C s() ?  1 2 20 ( ) 4 20 G s s s    Step response ? Arbitrary response ? 2 2 22 2 1 (2 ) 1 ( ) 2 2 n n nn nn s C s s s ss s s              sin( ) 1 ( ) 1 2          t e c t d t n 2 2 32 ( ) 8 32 G s s s    3 2 80 ( ) 8 80 G s s s   