Find parametric equations for the normal line to the surfacez=-7x2 -9y2   at the point  (2,1,-37)

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter8: Polar Coordinates And Parametric Equations
Section8.CT: Chapter Test
Problem 8CT
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Find parametric equations for the normal line to the surfacez=-7x2 -9y2   at the point  (2,1,-37) 

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