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