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Shortest distance from origin to xyz2=2 |
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Answer» z2=2/(xy) d2=x2+y2+z2=x2+y2+2/(xy) Partial derivative relative to x : 2x-2/(x2y)=0 Partial derivative relative to y : 2y-2/(xy2)=0 Solving the equations y*(x3)=x*(y3)=1 leads to : x=y=1 then z=√2 min.distance d=2 |
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