Consider the Function $g ( x , y , z ) = x ^ { 2 } + y ^ { 2 } + z ^ { 2 }$

question 84

Essay

Consider the function $g ( x , y , z ) = x ^ { 2 } + y ^ { 2 } + z ^ { 2 }$ (a)Describe the level set g = 16.
(b)Find a vector perpendicular to the tangent plane to the level set g = 16 at the point (-1, 2, 2).

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