Consider the analog signal x(t)=3 cos 100лt a. Determine the minimum sampling rate required to avoid aliasing. b. Suppose that the signal is sampled at the rate F₂ =200 Hz. What is the discrete- time signal obtained after sampling? c. Suppose that the signal is sampled at the rate F =75 Hz. What is the discrete- time signal obtained after sampling? d. What is the frequency 0<F <Fs/2 of a sinusoid that yields samples identical to those obtained in part (c)?