Question: Find a unit normal vector for the following function at the point P( - 3, 4, - 15): f(x, y) = In - T -3y


Find a unit normal vector for the following function at the point P( - 3, 4, - 15): f(x, y) = In - T -3y - z Hint: Write your answer as a vector (a, b, c) with a negative z component
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