There is a need for a simple first-order antialiasing filter prior to digitizing the EKG signal shown in Figure \(\underline{\text { P1 }} 3=37\).
(a) Determine the fundamental frequency of the EKG signal shown.

(b) To faithfully capture all of the signal characteristics, your filter must pass all harmonics up to the 20oth harmonic. Design an appropriate filter.
(c) What is the minimum sampling rate needed to avoid aliasing?