Search for question
Question

Find the unit directions in which f(x, y)=\frac{x^{2}}{2}+\frac{y^{2}}{2} (a) Increases most rapidly at the point (1,1). (b) Decreases most rapidly at (1,1). (c) What are the directions of zero change

in fat (1,1).

Fig: 1

Fig: 2

Fig: 3