Question: Experiments show that in a temperature field, heat flows in the direction of maximum decrease of temperature T. Find this direction in general and at

Experiments show that in a temperature field, heat flows in the direction of maximum decrease of temperature T. Find this direction in general and at the given point P. Sketch that direction at P as an arrow.

T = x2 + y2 + 4z2, P: (2, -1, 2)


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