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Lagrange Multipliers. Objective: -Understand the method of Lagrange multipliers -Use Lagrange multipliers to solve constrained optimization problems (functions.

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Presentation on theme: "Lagrange Multipliers. Objective: -Understand the method of Lagrange multipliers -Use Lagrange multipliers to solve constrained optimization problems (functions."— Presentation transcript:

1 Lagrange Multipliers

2 Objective: -Understand the method of Lagrange multipliers -Use Lagrange multipliers to solve constrained optimization problems (functions of two variables)

3 Finding Relative extreme is easy (inside the region) Absolute extreme is long and messy because of the boundary condition So what???

4 Example: Let’s say we want to find a rectangle of maximum area which can be inscribed in the ellipse given by

5 What can you say about the gradients of the functions f and g at the intersection point?

6 Lagrange's Theorem

7

8 What is the use of this Lagrange Multipliers?

9 Method of Lagrange Multipliers

10 Let’s continue the example

11 Example to Try

12 Try Me and get rest

13 Home work

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