How are the arbitrary signal represented, that are applied to the input of transistor? (Assume common mode signal and differential mode signal to be VCM & VDM respectively).

Sum and Difference of VCM & VDM

How are the arbitrary signal represented, that are applied to the inpu

1.	How are the arbitrary signal represented, that are applied to the input of transistor? (Assume common mode signal and differential mode signal to be V_CM & V_DM respectively).
A.	Sum of V<sub>CM</sub> & V<sub>DM</sub>
B.	Difference of V<sub>CM</sub> & V<sub>DM</sub>
C.	Sum and Difference of V<sub>CM</sub> & V<sub>DM</sub>
D.	None of the mentioned
Answer» D. None of the mentioned