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Question: section 22 discretetime signals 21 classify each of the following...

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Section 2.2: Discrete-time Signals 2.1 Classify each of the following signals as finite or infinite. For the finite signals, find 0 for Al > N. the smallest integer N such that x(k) (a) x(k)-μ(k + 5)-μ(k-5) (b) x(k)-sin(.2nk)μ(k) (c) x(k) min(k-9,0)uck) (e) x(k) ; tan(v2nk)(μ(k) _ μ(k-1001 () x(k) 8(k)cos (k) 1 (g) x(k) -k-ksin (.5zk)

23 Classify each of the following signals as periodic or aperiodic. For the periodic signals, find the period, M. (a) x(k) cos(.02mk) (b) x(k) sin(.1k) cos(.2k) (c) x(k) cos(V3k) (d) x(k)-expj/8) (e) x(k) mod(k, 10) (f) x(k) sink)(k) g) atk)-p
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