Question

Find the directional derivative of 7%, where ū = xyzî + zy2h+xz?k at the point (2,0,3) in the direction of
the outward normal to the surface x2 + y2 + z2 = 14 at the point(3,2,1)
.​

Answer 1

Answer:

To find the directional derivative in the direction of the vector (1,2), we need to find a unit vector in the direction of the vector (1,2). We simply divide by the magnitude of (1,2). u=(1,2)∥(1,2)∥=(1,2)√12+22=(1,2)√5=(1/√5,2/√5).

Step-by-step explanation:

hope this help u✌