520 Appeiidix A Solutions to thc Excrcises b) Accaording t'o (12.,13),t'he F-lransform of a sampled signal corresponcls to the F*-trmsform of tjhe ccluivalent, discreLe series for R = w7' X ( ej") f I Solution 12.7 Without loss of gcner;ilit,y we choose 0 F [-n: 7r] +-