If X(Z) = Z-Transform of xk = Z/(Z-1), then what would be xk at k=0, namely x(0)?
x(0) = 1
x(0) = 0
x(0) = infinity
x(0) = 1
x(0) = None
QUESTION 4
If the next signal is causal, then what is its X(Z)?
xk = 0.75k.uk
s0 + Z/Z = z
OXZ = 1/Z - 0.75
xZ = 1/Z + 0.75
X(Z) = Z/(Z - 0.75 - 1)
OX(Z) = Z/Z + 0.75 - 1