Question

A vector of 5√2 units in y- z plane is
i want with solution
Thanks ​

Answer 1

Answer:

idbdndnsnjsjsmwkwkwkwkwkwkw

Answer 2

Answer:

the point (x,y)=(3,2) are:

∂f∂x(x,y)∂f∂x(3,2)=2xy=12∂f∂y(x,y)∂f∂y(3,2)=x2=9

Therefore, the gradient is

∇f(3,2)=12i+9j=(12,9).

(b) Let u=u1i+u2j be a unit vector. The directional derivative at (3,2) in the direction of u is

Duf(3,2)=∇f(3,2)⋅u=(12i+9j)⋅(u1i+u2j)=12u1+9u2.(1)