1.

What is the z-transform of the signal x(n)=[3(2n)-4(3n)]u(n)?

A. \(\frac{3}{1-2z^{-1}}-\frac{4}{1-3z^{-1}}\)
B. \(\frac{3}{1-2z^{-1}}-\frac{4}{1+3z^{-1}}\)
C. \(\frac{3}{1-2z}-\frac{4}{1-3z}\)
D. None of the mentioned
Answer» B. \(\frac{3}{1-2z^{-1}}-\frac{4}{1+3z^{-1}}\)


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