Example: find the maximum and minimum values of the function f(x, y) = 3x + 4y on the circle x +y² = 1 Solution: we model this as a Lagrange multiplier problem with f(x, y) = 3x +4y , g(x,y)=x² +y² –1 and look for the values of x , y, and 2 that satisfy the equations:

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Example: find the maximum and minimum values of the function
f(x, y) = 3x +4y on the circle x² + y? = 1
Solution: we model this as a Lagrange multiplier problem with
f(x, y) = 3x + 4y
g(x, y) = x² + y² -1
and look for the values of x , y , and å that satisfy the equations:
Transcribed Image Text:Example: find the maximum and minimum values of the function f(x, y) = 3x +4y on the circle x² + y? = 1 Solution: we model this as a Lagrange multiplier problem with f(x, y) = 3x + 4y g(x, y) = x² + y² -1 and look for the values of x , y , and å that satisfy the equations:
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