Rational function/R/Determine derivative/x^2+1 durch x^3/Exercise

Determine the derivative of the function

$f\colon D=\mathbb {R} \setminus \{0\}\longrightarrow \mathbb {R} ,x\longmapsto f(x)={\frac {x^{2}+1}{x^{3}}}.$

Create a solution