P13.1 The input to a sampler is r t ( ) = sin , ( ) t where = 1.5 . Plot

P13.1 The input to a sampler is r t( ) = sin , ( ) ωt where

ω π = 1.5 . Plot the input to the sampler and the out

put r t *( ) for the first 2 seconds when T = 0.25 s.