(a) Find equation of the tangent plane and normal line to the sphere x + y +z = 25 at the point (-3,0,4).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
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Chapter11: Topics From Analytic Geometry
Section: Chapter Questions
Problem 18T
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(a) Find equation of the tangent plane and normal line ta the sphere x? +y? + z = 25 at
the point (-3,0,4).
(b) Find the point that makes the tangent plane to the surface z = x - xy + y? - 2x + 4y
horizontal.
Transcribed Image Text:(a) Find equation of the tangent plane and normal line ta the sphere x? +y? + z = 25 at the point (-3,0,4). (b) Find the point that makes the tangent plane to the surface z = x - xy + y? - 2x + 4y horizontal.
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