Question: For ((x, y) = x2/2 + y2, (a) Find the equation of its level curve that goes through the point (4, 1) in its domain;

For ((x, y) = x2/2 + y2,
(a) Find the equation of its level curve that goes through the point (4, 1) in its domain;
(b) Find the gradient vector (( at (4, 1);
(c) Draw the level curve and draw the gradient vector with its initial point at (4, 1).

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