Assume that the impulse response of a multipath communication channel is h(t) = h8 (t t) i=0 = 0.1, h where ho 1.1s, and t4 : 3s. b. = 0.1, h = 1, h3 = 1.1, and h4 -0.2 where to = a. Obtain the corresponding response for the input of cos(2ft) in the form of A(f) cos(2ft + 0(f)) terms. 0, t = 0.1us, t = 0.7s, t3 = Plot the magnitude of frequency response gain between 1845 MHz and 1855 MHz. Use enough points to ensure that the plotted curve appears smooth. Set the unit for the x-axis of the plot "MHz." (Hint: What is the definition of the frequency response?) Show the frequencies that the signal fades. Plot the magnitude of frequency response gain between 1845 MHz and 1855 MHz by using the complex exponentials.