O a. y[n] = ay[n – 1] + a[n] O b. y(t) = x(2t + 1) O c. y[n] = nx[n] O d. y(t) = ax(t) +b

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section: Chapter Questions
Problem 5T
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Which among these are linear AND time invariant?

O a. y[n] = ay[n – 1] + a[n]
O b. y(t) = x(2t + 1)
O c. y[n] = nx[n]
O d. y(t) = ax(t) + b
Transcribed Image Text:O a. y[n] = ay[n – 1] + a[n] O b. y(t) = x(2t + 1) O c. y[n] = nx[n] O d. y(t) = ax(t) + b
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