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Find the directional derivative using $f(x, y, z)=x y+z^{2}.$ At (1,2,3) in the direction of $\vec{i}+\vec{j}+\vec{k}.$...

Question

Find the directional derivative using $f(x, y, z)=x y+z^{2}.$ At (1,2,3) in the direction of $\vec{i}+\vec{j}+\vec{k}.$

Find the directional derivative using $f(x, y, z)=x y+z^{2}.$ At (1,2,3) in the direction of $\vec{i}+\vec{j}+\vec{k}.$



Answers

Find the directional derivative using $f(x, y, z)=x y+z^{2}.$ At (1,2,3) in the direction of $\vec{i}+\vec{j}+\vec{k}.$


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