Home /
Expert Answers /
Advanced Math /
let-f-u-to-r-3-be-differenciable-function-on-u-in-r-3-suppose-f-has-some-local-maximam-at-some-fi-pa261

(Solved): Let f : U to R^3 be differenciable function on U in R^3. Suppose f has some local maximam at some fi ...

Let f : U to R^3 be differenciable function on U in R^3. Suppose f has some local maximam at some fixed p in U. Is that conclude (Df)p=0? Proof or give counterexample.