510 Appendix A Sohitions to the Exercises / 0.5 case 4: wag = O@ 27r = Jic! ' Y - T4 c Aliasing in case Critical sampling in case Solution 11.16 27r dg 27r X ( p ) = - - -rert 27r 271 dg U 1+- for - d g < u i < forO