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Consider xa(t) = cos(200xt) (20 points) a) Determine the minimum sampling rate to avoid aliasing b) Write down an expression for x[n] if a

Consider xa(t)= cos(200xt) (20 points) a) Determine the minimum sampling rate to avoid aliasing b) Write down

Consider xa(t) = cos(200xt) (20 points) a) Determine the minimum sampling rate to avoid aliasing b) Write down an expression for x[n] if a sampling frequency of 400 Hz is used.

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