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I know that if

[tex]z = f(x,y) = x^2y + xy^2[/tex]

then

[tex]\frac{\partial z}{\partial x}=2xy+y^2[/tex] and

[tex]\frac{\partial z}{\partial y}=x^2+2xy[/tex]

Please correct me if I am wrong.

In the physics, can anyone please tell me what is the meaning of below formula?

[tex]\frac{\partial V}{\partial t}[/tex]

Where V is the velocity and t is the time elapsed.

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# Partial Differentiation?

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