Ibironke3317 Ibironke3317 30-07-2024 Mathematics Answered Compute the directional derivative of the following function at the given point P in the direction of the given vector. Be sure to use a unit vector for the direction vector. f(x,y)=sqrt(16-x^(2)-4y);P(4,-4);(:(2)/(sqrt13),(3)/(sqrt13):)?