Superposition confusion (Voltage-to-Current Converter)

Thread Starter

jegues

Joined Sep 13, 2010
733
This is question 2.78 out of Sedra/Smith Micro electronics textbook. (6th edition)

I'm confused as to how the authour of my textbook draws this conclusion in his work. (I have it circled)

By the way, in the given question we are analysising the circuit in the figure to demonstrate how it is a voltage to current converter regardless of the value ZL.

Can someone explain?

Thanks again!

EDIT: My work up to the point where I am stuck has been posted as well.
 

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Thread Starter

jegues

Joined Sep 13, 2010
733
Bump, I've posted my work on the OP now as well.

Hopefully we can figure out how he derived the term I circled in pencil in his solution.
 
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