Since β = 200, Vcc = 20 V, R1 = 47 kΩ, R2 = 6.8 kΩ, RC = 4.7 kΩ, RE = 2.45 kΩ in the circuit in the figure, what would be the value of the input impedance (Zi) of the system? NOTE: The output impedance of the transistor r0 will be neglected.

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