What are the absolute min and max of f(x,y)=xy^2 over a specific domain?

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SUMMARY

The discussion focuses on finding the absolute minimum and maximum of the function f(x,y) = xy² within the domain defined by x² + y² ≤ 4. Participants emphasize the importance of identifying critical points within the interior (x² + y² < 4) and evaluating the boundary defined by x² + y² = 4. The critical points are determined using calculus techniques, specifically the method of Lagrange multipliers and evaluating the function at the boundary conditions.

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der.physika
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Find the absolute min & absolute max of

f(x,y)=xy^2

with domain x^2+y^2\leq4

Please help
 
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Look for critical points on the interior x^2+y^2<4 and then check the boundary x^2+y^2=4. You should be able to at least get started.
 

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