Given the z-transform pair 3nn2 u[n] X (z). The time signal correspo – McqOptions

MCQOPTIONS

1.	Given the z-transform pair 3ⁿn² u[n] X (z). The time signal corresponding to ( frac{dX(z)}{dz} ) is ___________
A.	(n-1)<sup>3</sup>3<sup>n-1</sup>u[n-1]
B.	n<sup>3</sup>3<sup>n</sup>u[n-1]
C.	(1-n)<sup>3</sup>3<sup>n-1</sup>u[n-1]
D.	(n-1)<sup>3</sup>3<sup>n-1</sup>u[n]
Answer» D. (n-1)<sup>3</sup>3<sup>n-1</sup>u[n]

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