Assume that H(w) is as follows. Can one of these systems cancel cos(n)? Which one and for what value of o ?

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Consider the following four systems where o 0.
zw R you
Ra > you
Ra you
D
A
Which of these systems is time invariant ? Which of these systems is linear? (no
justifications are required here)
Which of these systems has a global frequency response equal to H(w) + a ? Are
there several of them ?
Assume that H(w) is as follows.
Can one of these systems cancel cos( n) ?
Which one and for what value of a ?
Transcribed Image Text:Consider the following four systems where o 0. zw R you Ra > you Ra you D A Which of these systems is time invariant ? Which of these systems is linear? (no justifications are required here) Which of these systems has a global frequency response equal to H(w) + a ? Are there several of them ? Assume that H(w) is as follows. Can one of these systems cancel cos( n) ? Which one and for what value of a ?
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