a) The closest point travels farther as a is increased
b) The closest point travels nearer as a is increased
c) The closest point is independent of a as a is not there in the expression of the gradient.
d) Varies as a2, away from the origin.
Consider the points closest to the origin on the planes x + y + z = a.
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answerhappygod
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Consider the points closest to the origin on the planes x + y + z = a.
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