Datrys ar gyfer y_4
\left\{\begin{matrix}y_{4}<\frac{c-4}{t}\text{, }&t>0\\y_{4}\in \mathrm{R}\text{, }&c>4\text{ and }t=0\\y_{4}>\frac{c-4}{t}\text{, }&t<0\end{matrix}\right.
Datrys ar gyfer t
\left\{\begin{matrix}t<\frac{c-4}{y_{4}}\text{, }&y_{4}>0\\t\in \mathrm{R}\text{, }&c>4\text{ and }y_{4}=0\\t>\frac{c-4}{y_{4}}\text{, }&y_{4}<0\end{matrix}\right.
Rhannu
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Enghreifftiau
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