Find the point on the plane 8x – y + 8z = 80 nearest the origin. (x, y, z) =( )
Find all second partial derivatives of the following function at the point x0.
f(x, y) = sin(xy); Xe = (phi, 4) 224 > 0x2 = 0 > 02f Әх ду a2q — > dy dx = 0 027 > dyz = 0