Question: A function f : R 3 R is differentiable at ( a , b , c ) if it is close to its linear approximation

A function f:R3R is differentiable at (a,b,c) if it is "close" to its linear approximation for all points near (a,b,c).
Find the linearization L(x,y,z) of the f(x,y,z)=8x3+y3+z32 at the point (1,2,3). Answer: L(x,y,z)=
A function f : R 3 R is differentiable at ( a , b

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