- #1

EV33

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- 0

## Homework Statement

My question is if this is the formula for a normal vector for the point (x,y,z) of a surface of some function f(x,y).

(x,y,z)+t(f[tex]_{x}[/tex],f[tex]_{y}[/tex],-1)

My teacher used it in class and I just wanted to know if it is what I think it is.

## Homework Equations

## The Attempt at a Solution

Thank you.