Compute the gradient of the following function and evaluate it at the given point P. g(x.y) =x" - 2x y-7xy?; P(- 1,2) The gradient is Vi(x,y) = (). The gradient at (- 1,2) = (]) Compute the directional derivative of the function g(x,y) = sin ((3x - y)) at the point P( - 1,3) in the direction 8 15 17 17- Be sure to use a unit vector for the direction vector. 2 The directional derivative is. Type an exact answer, using It as needed.) 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)= /25-x2 - 5y; P(5 - 5);(-. W Find the gradient of f(x,y) = /25 -x2 - 5y . Vi(x.y) = (00 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. 1(x. y ) = In (6+x2 + y?); P(2. -2); (3.1) L Find the gradient of f(x.y) = In (6 +x2 + 2). Vf(x.y) = (00