Consider f(x, y) = x2 + 4.xy + y? subject to the constraint x2 + y? < 49 (a) Find all critical points of the function that lie in the interior of the disk and use the second derivative test to classify those points. (b) Using Lagrange multipliers, determine the complete system of equations to find the points on the boundary.

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A: Since you have uploaded multiple questions, according to our guidelines we have solved first…

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Q: yes, hi. I've seen another source, use set variables to 0 and then solve individually, answers are…

A: setting z=0 and solving for x and y. similarly setting y=0 and solving for x and z.

Q: Find the minimum of f(x,y) = 2x2 + 3y2 subject to x2 + y2 = 4.

A: We have to find the minimum value.

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Q: Use Lagrange multipliers to find the point whose coordinates are all positive at which the function…

A: To find - Use Lagrange multipliers to find the point whose coordinates are all positive at which the…

Q: ve test to identify any critical points a these. -2 – 6y² + 12x - 36y – 87

A: In this question, the concept of maxima and minima is applied. Maxima and Minima The critical points…

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Q: Q2: Find the absolute maximum and minimum of the function f(x, y) = x² + y² on the closed triangular…

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