Question: The temperature at a point (x, y)on a flat metal plate is given by T(x, y) =60/(1 +x^2 +y^2), where T is measured in degreesC

The temperature at a point (x, y)on a flat metal plate is given by T(x, y) =60/(1 +x^2 +y^2), where T is measured in degreesC and x, y in meters. Find the rate of change of temperature with respect to distance at the point (2, 1) in (a) the x-direction and (b) the y-direction.

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