Which of the following discrete functions describes the plot below? 1.00 0.75 0.50 0.25 0.00 -0.25 --0.50 -0.75 -1.00 2 4 6. k O Yk = sin (kT) O y 1)" Yk =
Which of the following discrete functions describes the plot below? 1.00 0.75 0.50 0.25 0.00 -0.25 --0.50 -0.75 -1.00 2 4 6. k O Yk = sin (kT) O y 1)" Yk =
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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Question
Which of the following discrete functions describes the plot below?
Which of the following discrete functions describes the plot below?
y_k=\left(-1\right)^kyk=(−1)k
y_{k_{ }}=\cos\left(\pi k+\frac{\pi}{2}\right)yk=cos(πk+2π)
y_k=\sin\left(k\pi\right)yk=sin(kπ)
y_k=\left(-1\right)^{k+1}yk=(−1)k+1
y_k=\frac{\left(-1\right)^n}{n}yk=n(−1)n
Transcribed Image Text:Which of the following discrete functions describes the plot below?
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
2
4
6.
8.
k
Yk = cos (Tk HE
O Yk = sin (kT)
Yk= 1)
Yk
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