Question

чему равна производная x/3

Answer 1

$y= \frac{1}{3}x \\ \\ y'= \frac{1}{3}$

Answer 2

y=x/3;
x'=1;
(1/3)'=0;
y'(x)=(x/3)'=(1/3)'x+1/3*x'=0*x+1/3=1/3