$ \text{ Sample a continuous signal x(t)=sin(}\omega t)\text{ with period of T, } $
1) In order to avoid aliasing, what is the maximum value of T? Write down the discrete time signal x(n) with the maximum T. Answer here.
2) The system diagram is as follows.
In order to get rid of aliasing, what is the cut-off frequency of the low pass filter? Explain your answer. Answer here.
