Vector Calculus Problems And Solutions

[mage lang=”en|es|en” source=”flickr”]vector calculus problems and solutions[/mage]
I do not understand this calculus problem!?

I am asked to find the vector field gradient of the scalar function. F (x, y, z) = y / z + z / x – xz / and someone can explain the solution and answer please?!

grad f = ∂ f / ∂ xi + ∂ f / ∂ yj + ∂ f / ∂ zk = (-z / x ^ 2 – z / a) i + (1 / z + xz / y ^ 2) j + (y-/ z ^ 2 + 1 / x – x / y) k When you take the partial derivatives, the treatment of the variables that are not differentiating as constants.

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