Solve for f (complex solution)
\left\{\begin{matrix}f=\frac{sign(x)sign(x-1)sign(x+1)}{x}\text{, }&x\neq 0\\f\in \mathrm{C}\text{, }&x=0\end{matrix}\right.
Solve for f
\left\{\begin{matrix}f=\frac{|x|sign(x-1)sign(x+1)}{x^{2}}\text{, }&x\neq 0\\f\in \mathrm{R}\text{, }&x=0\end{matrix}\right.
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xf=sign(x^{3}-x)
The equation is in standard form.
\frac{xf}{x}=\frac{sign(x^{3}-x)}{x}
Divide both sides by x.
f=\frac{sign(x^{3}-x)}{x}
Dividing by x undoes the multiplication by x.
xf=sign(x^{3}-x)
The equation is in standard form.
\frac{xf}{x}=\frac{sign(x^{3}-x)}{x}
Divide both sides by x.
f=\frac{sign(x^{3}-x)}{x}
Dividing by x undoes the multiplication by x.
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