2. Prove the following properties of Discrete-time Fourier transform (DTFT). DTFT DTFT (a) ifx[n] X(e") then x[n-n,] → X (e")e™ DTFT DTFT DTFT (b) ifx[n] → X(elo) & y[n] → Y(e") then x[n]y[n]

Advanced Engineering Mathematics
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ISBN:9780470458365
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Chapter2: Second-order Linear Odes
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Prove the following properties of Discrete-time Fourier transform (DTFT).

2. Prove the following properties of Discrete-time Fourier transform (DTFT).
DTFT
DTFT
(a) if x[n] → X(e) then x[n-n,] → X(e®)e™
DTFT
DTFT
DTFT
(b) ifx[n]
→ X (e) & y[n] → Y(e®) then x[n]y[n] >
(X(e«)Y(e@-a)da
2л
Transcribed Image Text:2. Prove the following properties of Discrete-time Fourier transform (DTFT). DTFT DTFT (a) if x[n] → X(e) then x[n-n,] → X(e®)e™ DTFT DTFT DTFT (b) ifx[n] → X (e) & y[n] → Y(e®) then x[n]y[n] > (X(e«)Y(e@-a)da 2л
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