Whakaoti mō r
\left\{\begin{matrix}r=\frac{A}{x^{2}}\text{, }&x\neq 0\\r\in \mathrm{R}\text{, }&A=0\text{ and }x=0\end{matrix}\right.
Whakaoti mō A
A=rx^{2}
Tohaina
Kua tāruatia ki te papatopenga
rx^{2}=A
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
x^{2}r=A
He hanga arowhānui tō te whārite.
\frac{x^{2}r}{x^{2}}=\frac{A}{x^{2}}
Whakawehea ngā taha e rua ki te x^{2}.
r=\frac{A}{x^{2}}
Mā te whakawehe ki te x^{2} ka wetekia te whakareanga ki te x^{2}.
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