Question: 1 6 . ) For what points P : ( x , y , z ) does gradf with f = 2 5 x 2

16.) For what points P:(x,y,z) does gradf with f=25x2+9y2+16z2 have the direction from P to the origin?
1 6 . ) For what points P : ( x , y , z ) does

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For what points P: (x, y, z) does f with f = 25x 2 + 9y 2 + 16z 2 have the direction from P to the origin?

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