 #1
Addez123
 184
 15
 Homework Statement:

Prove that all functions $$z = f(x + y) $$
solves the equation $$z'_x  z'_y = 0$$
 Relevant Equations:

$$z = f(x + y) $$
$$z'_x  z'_y = 0$$
How about I prove that to be false instead?
$$z = x$$
$$z'_x(x + y) = 1$$
$$z'_y(x + y) = 0$$
$$z'_x  z'_y = 1$$
$$z = x$$
$$z'_x(x + y) = 1$$
$$z'_y(x + y) = 0$$
$$z'_x  z'_y = 1$$
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