7 5.Exr~i5c.s 151 I ~~ b) thc output s i g u d g(t) Exercise 7.6 I’he following sccond-order sysirm is giver1 i n dircct for111 111: X ( lf ) 2.1 ?l(0) (0) = it) = - &(t & ( f - 2) 2c2 a ( ) = 2b a) Determine y ( t ) with (7.58) b) C m (7.58) nlho be used, if the block diagram is also given in dirwt form II?