Question: Prove that for a linear-phase filter whose impulse response has length (M L), its (M) polyphase components (Equation (8.35)) should satisfy [E_{j}(z)= pm z^{-(L-1)} E_{M-1-j}left(z^{-1}

Prove that for a linear-phase filter whose impulse response has length \(M L\), its \(M\) polyphase components (Equation (8.35)) should satisfy

\[E_{j}(z)= \pm z^{-(L-1)} E_{M-1-j}\left(z^{-1}\right) .\]

M-1 ==E(z). j=0 (8.35)

M-1 ==E(z). j=0 (8.35)

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