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14:35
This question got a downvote (why?) prior to the present situation +2/-1 math.stackexchange.com/questions/1800686/…
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Q: Hottest and coldest points on a heated circular plate (use Lagrange multipliers)

Aya HussienA circular plate given by the relationship $x^2 + y^2 \leq 1$ is heated according to the spatial temperature function $T(x,y) = 2x^2 + y^2-y$. Find the hottest and coldest point on the plate using Lagrange multipliers. I tried to solve it but u got only one point (0,1) instead of 4 points .. ...

The question is good enough, I think.

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