Question

Let f(x y z)=x4y4+z5, P=(4, 4, 1). Calculate the directional derivative in the direction pointing to...

Let f(x y z)=x4y4+z5,

P=(4, 4, 1).

Calculate the directional derivative in the direction pointing to the origin. Remember to normalize the direction vector.

(Use symbolic notation and fractions where needed.)



Duf(4, 4, 1)

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