How do we calculate the normal vector for the sphere surface x^2+y^2+z^2=1 and the plane x+y+z=2 . I am so confused because we have the equation n=-fxi-fyj+k and n=fxi+fyj+fzk which one is correct? Finding the n for the stoke theorem and flux

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- I don't understand the second part any vector parallel to the position vectors of the surface points, is a normal vector to the surface. Could you please hold some examples?
- Rogerw001
- Apr 01, 2018 at 7:38pm