1.
Let f:R∖{0}→Rf:\mathbb{R}\setminus\{0\}\to\mathbb{R} be a function satisfying
f ⁣(xy)=f(x)f(y)f\!\left(\frac{x}{y}\right)=\frac{f(x)}{f(y)}
for all x,yx,y, f(y)≠0f(y)\neq0. If f′(1)=2024f'(1)=2024, then