Find the planes tangent to the following surfaces at the indicated points. (a) x² + 2y² + 9xz = 12, at the point (1, 2, 3 (b) y² -x² - = 8, at the point (1, 3, 7) (c) xyz = 1, at the point (1, 1, 1)

Algebra and Trigonometry (MindTap Course List)
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Chapter8: Polar Coordinates And Parametric Equations
Section8.CT: Chapter Test
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Find the planes tangent to the following surfaces at the indicated points.
x² + 2y² + 9xz = 12, at the point (1, 2,
¹-)
3
(a)
(b) y² - x² = 8, at the point (1, 3, 7)
(c) xyz
=
1, at the point (1, 1, 1)
Transcribed Image Text:Find the planes tangent to the following surfaces at the indicated points. x² + 2y² + 9xz = 12, at the point (1, 2, ¹-) 3 (a) (b) y² - x² = 8, at the point (1, 3, 7) (c) xyz = 1, at the point (1, 1, 1)
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