Determine the equation of a plane tangent to the surface defined by f(x,y)=√x² + y2 at the point (3, 4, 5). (a) Find a parameterization for the x = 3 trace of f. What is a direction vector for the line tangent to this trace at the point (3, 4, 5)? (b) Find a parameterization for the y = 4 trace of f. What is a direction vector for the line tangent to this trace at the point (3,4,5)? (c) The direction vectors in parts (a) and (b) form a plane containing the point (3,4,5). What is a normal vector for this plane? (d) Use your work in parts (a), (b), and (c) to determine an equation for the tangent plane.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Example 3
Determine the equation of a plane tangent to the surface defined
by f(x, y) = √√x² + y2 at the point (3,4,5).
x2
(a) Find a parameterization for the x = 3 trace of f. What is a
direction vector for the line tangent to this trace at the
point (3, 4, 5)?
(b) Find a parameterization for the y = 4 trace of f. What is
a direction vector for the line tangent to this trace at the
point (3,4,5)?
(c) The direction vectors in parts (a) and (b) form a plane
containing the point (3,4,5). What is a normal vector for
this plane?
(d) Use your work in parts (a), (b), and (c) to determine an
equation for the tangent plane.
Transcribed Image Text:Example 3 Determine the equation of a plane tangent to the surface defined by f(x, y) = √√x² + y2 at the point (3,4,5). x2 (a) Find a parameterization for the x = 3 trace of f. What is a direction vector for the line tangent to this trace at the point (3, 4, 5)? (b) Find a parameterization for the y = 4 trace of f. What is a direction vector for the line tangent to this trace at the point (3,4,5)? (c) The direction vectors in parts (a) and (b) form a plane containing the point (3,4,5). What is a normal vector for this plane? (d) Use your work in parts (a), (b), and (c) to determine an equation for the tangent plane.
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