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    Find and Express the Z Transform as a Rational Function

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    For the following expression:

    x(n) = 3 (0.75)^n cos(0.3 pi n)u(n) + 4 (0.75)^n sin(0.3 pi n) u(n),

    Please calculate and express the Z transform as a rational function Z^-1 and work out the ROC.

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    Solution Preview

    The step-by-step solution for this problem is attached.

    Given x(n) = 3*(0.75)^n * cos(0.3*pi*n)u(n) + 4*(0.75)^n * sin(0.3*pi*n) u(n)

    Find and Express the Z transform as a rational function Z^-1 and find the ROC.

    The first step in solving the problem is to use ...

    Solution Summary

    The two-page solution walks the reader through the calculations to express the Z transformation.