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Algebra & Trigonometry with Analytic Geometry

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter11: Topics From Analytic Geometry

Section: Chapter Questions

Problem 18T

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Question

(a) Find an equation of the tangent plane to the surface at the given point.
z = x? - y?,
(9, 2, 77)
(b) Find a set of symmetric equations for the normal line to the surface at the given point.
x + 9
y + 2 z + 77
18
-4
-1
Ox - 9 = y - 2 = z - 77
x - 9
y - 2 z - 77
%3D
18
-4
-1
Ox + 9 = y + 2 = z + 77
%3D
x O
-4
y
%3D
18
-1

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