The critical points for this optimization problem will thus come from solutions to the following system of equations. 3 = 21x 2 = 4ly 4 = 12\z x² + 2y² + 6z² - 21 = 0 Solve the first equation for 2. 3 = 21x = 3 We will choose to eliminate 1 from 2 = 4ly by substituting this expression for A in order to express x in terms of y and also substitute this expression for A in 4 = 12\z to express x in terms of z. X = y X = (x² , + 2y2 + 6z2 - 21 = 0 Solve the first equation for y in terms of x and the second equation for z in terms of x. Then substitute these two equations into the constraint equation appropriately to get one equation in the variable x. x2 + 2 + 6 - 21 = 0 Ju? - 21 = 0

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.2: Direct Methods For Solving Linear Systems
Problem 4CEXP
icon
Related questions
Question
The critical points for this optimization problem will thus come from solutions to the following system of
equations.
3 = 21x
2 = 4ly
4 = 12\z
x² + 2y² + 6z²
- 21 = 0
Solve the first equation for 2.
3 = 21x
=
3
We will choose to eliminate 1 from 2 = 4ly by substituting this expression for A in order to express x in
terms of y and also substitute this expression for A in 4 = 12\z to express x in terms of z.
X =
y
X =
(x² ,
+ 2y2 + 6z2
- 21 = 0
Solve the first equation for y in terms of x and the second equation for z in terms of x. Then substitute these
two equations into the constraint equation appropriately to get one equation in the variable x.
x2 + 2
+ 6
- 21 = 0
Ju? -
21 = 0
Transcribed Image Text:The critical points for this optimization problem will thus come from solutions to the following system of equations. 3 = 21x 2 = 4ly 4 = 12\z x² + 2y² + 6z² - 21 = 0 Solve the first equation for 2. 3 = 21x = 3 We will choose to eliminate 1 from 2 = 4ly by substituting this expression for A in order to express x in terms of y and also substitute this expression for A in 4 = 12\z to express x in terms of z. X = y X = (x² , + 2y2 + 6z2 - 21 = 0 Solve the first equation for y in terms of x and the second equation for z in terms of x. Then substitute these two equations into the constraint equation appropriately to get one equation in the variable x. x2 + 2 + 6 - 21 = 0 Ju? - 21 = 0
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 9 images

Blurred answer
Knowledge Booster
Systems of Linear Equations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Algebra for College Students
Algebra for College Students
Algebra
ISBN:
9781285195780
Author:
Jerome E. Kaufmann, Karen L. Schwitters
Publisher:
Cengage Learning