Solve for P (complex solution)
\left\{\begin{matrix}P=\frac{100I}{RT}\text{, }&T\neq 0\text{ and }R\neq 0\\P\in \mathrm{C}\text{, }&\left(R=0\text{ or }T=0\right)\text{ and }I=0\end{matrix}\right.
Solve for I
I=\frac{PRT}{100}
Solve for P
\left\{\begin{matrix}P=\frac{100I}{RT}\text{, }&T\neq 0\text{ and }R\neq 0\\P\in \mathrm{R}\text{, }&\left(R=0\text{ or }T=0\right)\text{ and }I=0\end{matrix}\right.
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