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Find equation of the tangent plane

by andrey21
Tags: equation, plane, tangent
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andrey21
#1
Apr22-11, 07:25 AM
P: 466
Find the equation of the tangent plane to the level surface of the scalar field

[tex]\xi[/tex](x,y,z) = x2+y2+z2

at the point (1,1,2)




Looking the work through this question with someone, not to sure where to start.
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lanedance
#2
Apr22-11, 08:54 AM
HW Helper
P: 3,307
i would start with the general equation of a plane...

the tangent plane can be thought of as a linear approximation of the function at that point


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