Question

Найдите производную функции 3-5x/4x-1

Answer 1

$y=frac{3-5x}{4x-1}\\y'=frac{-5cdot (4x-1)-(3-5x)cdot 4}{(4x-1)^2}=frac{-20x+5-12+20x}{(4x-1)^2}=-frac{7}{(4x-1)^2}$