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).
(a) Sum of VCM & VDM
(b) Difference of VCM & VDM
(c) Sum and Difference of VCM & VDM
(d) None of the mentioned
The question was asked in my homework.
My doubt is from Operational Amplifier Internal Circuit topic in chapter Operational Amplifier of Linear Integrated Circuits