- #1
msslowlearner
- 33
- 0
Homework Statement
there is a surface xy3z2=4. What is the unit normal to this surface at a pt in the surface (-1,-1,2)??
Homework Equations
what is a unit normal to a scalar region? how can it be calculated?
The Attempt at a Solution
i calculated the gradient (del operator) of this surface at the given point to be 3i-12j+4k . this is in the direction of the unit normal along which max. rate of increase occurs. So far so good. But how dowe get the unit normal from this ? i don't know how to go further.