The phase function of a discrete time signal x(n)=an, where a=r.ej is

1.	The phase function of a discrete time signal x(n)=aⁿ, where a=r.e^j is?
A.	tan(n )
B.	n
C.	tan<sup>-1</sup>(n )
D.	none of the mentioned
Answer» C. tan<sup>-1</sup>(n )

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