1.56 (a),(b),(c),(d),(e) Let x[n] and y[n] be given in Figs. P1.18(a) and (b), respectively. Carefully sketch the following signals: (a) x[2n} (b) х[Зп - 1] (c) yf1 - n} (d) vl?

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EENG226 SIGNALS AND SYSTEMS SOLVED A B C
1.56 (a),(b),(c),(d),(e)
Let x[n] and y[n] be given in Figs. P1.18(a) and
(b), respectively. Carefully sketch the following
signals:
(a) x[2n}
(b) х[Зп — 1]
(c) y{1 - n}
(d) y[2 – 2n]
(e) x[n – 2] + yln + 2]
(f) x[2n] + y[n – 4]
(g) x[n + 2]y[n – 2]
(h) x[3 – n]y[n]
(i} x[-n}y[-n]
(j) x[n}y[-2 - n]
(k) x[n + 2]y[6 – n}
x[n]
-3 -2 -1
1 2 3
(a)
yln]
It
4 -3 -2 -1
1 2 3 4
(b)
FIGURE P1.18
Transcribed Image Text:1.56 (a),(b),(c),(d),(e) Let x[n] and y[n] be given in Figs. P1.18(a) and (b), respectively. Carefully sketch the following signals: (a) x[2n} (b) х[Зп — 1] (c) y{1 - n} (d) y[2 – 2n] (e) x[n – 2] + yln + 2] (f) x[2n] + y[n – 4] (g) x[n + 2]y[n – 2] (h) x[3 – n]y[n] (i} x[-n}y[-n] (j) x[n}y[-2 - n] (k) x[n + 2]y[6 – n} x[n] -3 -2 -1 1 2 3 (a) yln] It 4 -3 -2 -1 1 2 3 4 (b) FIGURE P1.18
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