Find Vf at the given point. K f(x,y,z) = x +13 - 272 + zInx, (1,2, 5) Vf| ( 1 ,2,5 ) = + )k (Simplify your answers.)Find Vf at the given point. K f(x,y,z) = ext sinz+ (y + 4) cos 0,0 , w/ a . Vf i+ Di+ k 0,0 , 7 (Type an exact answer, using radicals as needed.)