Shown in the figures below is a system in which the input signal is multiplied by a periodic square wave. The period of is . The input signal is band limited with
(a) For , determine, in terms of , the maximum value of for which there is no aliasing among the replicas of in .
(b) For , determine, in terms of , the maximum value of for which there is no aliasing among the replicas of in .
is 
. The input signal is band limited with 
, determine, in terms of 
, the maximum value of 
for which there is no aliasing among the replicas of 
in 
. 
, determine, in terms of 
, the maximum value of 
for which there is no aliasing among the replicas of 
in 
. 
