Question: Discrete Time fourier transform ( DTFT ) ( 1 ) x [ t ] = 0 . 7 n - 1 u [ n -

Discrete Time fourier transform (DTFT)
(1)x[t]=0.7n-1u[n-1]
invers DTFT
(a)101-0.25e-j(-3)
Discrete Time fourier transform ( DTFT ) ( 1 ) x

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