Hey guys. I have a question regarding the differential operator d.(adsbygoogle = window.adsbygoogle || []).push({});

Say we have an equation d(Z+X*Y^2)=0

If we want to differentiate the expression in the parenthesis, are these the steps to follow?

d(Z+X*Y^2)=0

dZ+d(X*Y^2)=0

Apply product rule to the second term:

dZ+Y^2*dX+X*dY^2=0

Here is where I get confused. To simply the 3rd term (X*dY^2), is the simplification this:

2Y*X*dY or 2*X*dY?

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# General differential question

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