Question

I want the answer with the solutionn, Please solve ittt​

Answer 1

Answer:

Explanation:

f=-du/dx-du/dy-du/dz

differentiate given equation wrt x  ,y and z

u=2xyz^2+x

du/dx=2yz^2+1

du/dy=2xz^2

du/dz=4xyz

if it is placed at origin coordinates will be zero

so f=-2