- #26

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- 188

What about the function:$$G(x_1, x_2, x_3) = \frac{\rho}{x_1^2 + y_1^2 + z_1^2}$$

How would you differentiate that with respect to ##y_2##?

It doesnâ€™t depend on ##y_2## therefore the whole expression will act as a constant and hence the derivative will be zero.

Oh My God!