(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

In the Lectures, we are told that techniques like homogeneity and superposition work only for linear circuits, but in Chapter 3 of the Textbook (which is the only place I can find one) I see a definition of linearity as "A circuit is linear if and only if

2. Relevant equations

f(ax1 + bx2) = af(x1) + bf(x2)"

i.e. if homogeneity and superposition work for it.

3. The attempt at a solution

How do I tell, when confronted with an arbitrary circuit, whether or not it is linear - whether or not homogeneity and superposition are going to work for it?

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# Definition of Linear Circuit?

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