Question: 6. Given: f ( x , y )= x 2 y . Find: a) Du ! f ( x , y ) in the direction

6. Given: f(x, y)=x2y. Find: a) Du! f ( x, y ) in the direction v = i! + 2 !j at the point (3, 2, 18).

b) !f (x, y) at the point (3, 2, 18).

c) Find the maximum slope at (3, 2, 18).

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