Question: (2 points extra credit) Let f:R3Rbe a differentiable function, and let Cbean oriented curve lying on the level surface f(x,y,z)=1. Compute Cgradf*dvec(r),and explain your answer

(2 points extra credit) Let f:R3Rbe a differentiable function, and let Cbean oriented curve lying on the level surface f(x,y,z)=1. Compute Cgradf*dvec(r),and explain your answer carefully.

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