x² + y2 + z? = 21, (1, 4, 2) (b) Find a set of symmetric equations for the normal line to the surface at the given point. %3D 2 21 21 21 Ox - 1 = y - 4 = z - 2 -1 - y - 4 - z - 2 4 2 O X - 1 - y – 4 - z - 2 21 21 21

x² + y2 + z? = 21, (1, 4, 2) (b) Find a set of symmetric equations for the normal line to the surface at the given point. %3D 2 21 21 21 Ox - 1 = y - 4 = z - 2 -1 - y - 4 - z - 2 4 2 O X - 1 - y – 4 - z - 2 21 21 21

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

(a) Find an equation of the tangent plane to the surface at the given point.
x2 + y2 + z? = 21, (1, 4, 2)
(b) Find a set of symmetric equations for the normal line to the surface at the given point.
1
4
2
21
Ox - 1 = y - 4 = z - 2
z - 2
21
21
O x- 1 - y – 4
=
1
4
2
x - 1
Y- 4
21
z - 2
21
21

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