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Compute the DTFT of x[n] = 20 (n − 3) (¹) ¹¹ - (a) What is the real part of X(ejw) at w = -0.4? (b) What is the imaginary part of X(ejw) at w = −0.4?

Compute the DTFT of x[n] = 20 (n − 3) (¹) ¹¹ - (a) What is the real part of X(ejw) at w = -0.4? (b) What is the imaginary part of X(ejw) at w = −0.4?

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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5. Compute the DTFT of x[n] = 20 (n − 3) (1)|| (a) What is the real part of X(ejw) at w = - = -0.4? (b) What is the imaginary part of X(ejw) at w = −0.4?
Transcribed Image Text:5. Compute the DTFT of x[n] = 20 (n − 3) (1)|| (a) What is the real part of X(ejw) at w = - = -0.4? (b) What is the imaginary part of X(ejw) at w = −0.4?
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