15.43 the low-pass filter designed in problem 15.41 is cascaded with the high-pass filter designed in problem 15.42. describe the type of filter formed by this interconnection. specify the cutoff frequencies, the midfrequency, and the quality factor of the filter. use the results of problems 15.35 and 15.40 to derive the scaled transfer function of the filter. check the derivation of (c) by using it to calculate h ( j ω o ) , where ω o is the center frequency of the filter.