5.3. Find the z-transform for each of the following sequences: a. x(n) = 3u(n - 4) b. x(n) = 2(-0.2)^n u(n) c. x(n) = Se^(-2(n-3))u(n - 3) d. x(n) = 6(0.6)^n cos(0.2rn)u(n) e. x(n) = 4e^(-Jn-Vsin(0.2r(n 1)))u(n- 1)
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.. Using the formula for the sum of a geometric series, we get: X(z) = 3z^(-4) / (1 - z^(-1)) Show more…
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