いろいろ F(x Y Z X^2 Y^2 Z^2)=0 779108-F X Y Z X 2 Y 2 Z 2 0 Pde
Find The Average Value Of F X Y Z Over The Given Region F X Y Z X2 9 Z = f(x;y) where the two independent variables are x and y, while z is the dependent variable The graph of something like z = f(x;y) is a surface in threedimensional space Such graphs are usually quite di–cult to draw by hand Since z = f(x;y) is a function of two variables, if we want to difierentiate we haveXx = x Proof x x = (x x) 1 postulate 2(b) F x y z x 2 y 2 z 2 0 pde