(a) Define partial derivatives for function of two variables. Why do you use partial derivatives? For...

 

Transcribed Image Text:

(a) Define partial derivatives for function of two variables. Why do you use partial derivatives? For the function f(x, y) = 2z (x², y?) respectively. 1 I'y-ry find fr(x, y) and fy(x,y) at the points (0,0), (a,b) and (a) Define partial derivatives for function of two variables. Why do you use partial derivatives? For the function f(x, y) = 2z (x², y?) respectively. 1 I'y-ry find fr(x, y) and fy(x,y) at the points (0,0), (a,b) and