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Continue to Chat14.40 Observe that Eq. (14.28) can be used to find the frequencies in the passband at which | T | is at its peaks and at its valleys. (The peaks are reached when the cos2[ ] term is zero, and the valleys correspond to the cos2[ ] term equal to unity.) Find these frequencies for a fifth-order filter. Peaks: 0.95ωp, 0.59ωp, 0; Valleys: ωp, 0.81ωp, 0.31ωp https://electricalstudent.com/14-40-observe-that-eq-14-28-can-be-used-to-find-the-frequencies-in-the-passband-at-which-t-is-at-its-peaks-and-at-its-valleys-the-peaks-are-reached-when-the-cos2-term-is-zero-and-the-vall/