input-output relationship

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androidsksksk

Joined Apr 22, 2022
3
The input-output relationship of a certain device is defined by:
\[ v_o = 20v_i + 10v_i^2 + v_i^3 \]
If the device is used to be as a mixer, what is the conversion gain?

Hi! anyone can help me figuring out this problem?
Based on what I've read conversion gain is simply the output over input but I can't seem to figure out how to finish this one.
 
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