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Signal and systems miscellaneous

Signals and Systems

  1. Given X(jω) =
    jω + 3
    then x(t)—
    (jω + 1)2
    1. e– t (1 + 2t) u(t)
    2. e– t [1 + 2δ(t)] u(t)
    3. e– t (1 + cos ωt + sin ωt) u(t)
    4. None of these
Correct Option: A

Given

X(jω) =
jω + 3
(jω + 1)2

=
1
+
2
1 + jω(1 + jω)2

then
x(t) = (e–t + 2te–t) u(t)



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