Question: 1. Find a unit vector u such that Duf (Po) = 0 for f(x, y) = 3sin(xy)-2x + 7e4y and Po(3,0).

1. Find a unit vector u such that Duf (Po) = 0

1. Find a unit vector u such that Duf (Po) = 0 for f(x, y) = 3sin(xy)-2x + 7e4y and Po(3,0).

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