Question: A signal e(t) = 4sin7t is applied to a sampler/zero-order-hold device, with = 4 rad/s . (a) What is the frequency component in the

A signal e(t) = 4sin7t is applied to a sampler/zero-order-hold device, with ω = 4 rad/s .

(a) What is the frequency component in the output that has the largest amplitude?

(b) Find the amplitude and phase of that component.

(c) Sketch the input signal and the component of part (b) versus time.

(d) Find the ratio of the amplitude in part (b) to that of the frequency component in the output at ω = 7 rad/s (the input frequency).

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