Graph of the function Failed to parse (unknown function "\begin{cases}"): {\displaystyle f:\R\to\R:x\mapsto\begin{cases}2x\sin\left(\frac 1x^2\right)-\frac{2}{x}\cos(\frac{1}{x^2}) &amp; x \neq 0 \\ 0 &amp; x= 0 \end{cases }}
Own work
Arami Mira