- #1
unscientific
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- 13
Homework Statement
In the first paragraph, I know its missing a function which they did not put, g. Without puting ∂g/∂x but simply putting ∂/∂x, is that equation even mathematically correct? I know they are "filling in the g later" but does this corrupt the in-between steps in anyway?
In the second paragraph, from step 1 to step 2:
-how can they simply " take out the f "?
-how can they simply replace 'f' by 'g'? would this imply that f = g? (which is obviously not the case)
The Attempt at a Solution
I have come to several conclusions to make sense of what's happening:
1. The term ' ∂/∂x ' by itself is meaningless, only when you slap it together with a function like in (∂/∂x)(∂g/∂x) would it mean that you are partially differentiating 'g' twice with respect to 'x'.I only started the topic of partial differentiation today, and the methods presented here seems weird to me...