Number of state variables of discrete-time system, described by\(y[n] – McqOptions

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1.	Number of state variables of discrete-time system, described by\(y[n] - \frac{3}{4}y[n - 1] + \frac{1}{8}y[n - 2] = x[n]\) is
A.	2
B.	3
C.	4
D.	1
Answer» B. 3

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