Question: If f (x, y) = 2x / x2 + y2, find the following a. 2f/x2 |(-1, 4) b. 2f/y2 |(-1, 4)

If f (x, y) = 2x / x2 + y2, find the following
a. ∂2f/∂x2 |(-1, 4)
b. ∂2f/∂y2 |(-1, 4)

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