Question

como calcular a derivada de : x/d*x(x/x-1)

Answer 1

$\frac{dy}{dx} = \frac{1.(x-1) - 1.x}{(x-1)^{2}}$

$\frac{dy}{dx} = \frac{x - 1 - x}{(x-1)^{2}}$

$\frac{dy}{dx} = \frac{-1}{(x-1)^{2}}$