Whakaoti i te 1/2by^2+nA_{s}y-nA_{s}d=0

$$\frac { 1 } { 2 } b y ^ { 2 } + n A _ { s } y - n A _ { s } d = 0$$

Whakaoti mō A_s

$$\left\{\begin{matrix}A_{s}=-\frac{by^{2}}{2n\left(y-d\right)}\text{, }&y\neq d\text{ and }n\neq 0\\A_{s}\in \mathrm{R}\text{, }&\left(b=0\text{ and }y=d\right)\text{ or }\left(y=0\text{ and }d=0\right)\text{ or }\left(y=0\text{ and }n=0\text{ and }d\neq 0\right)\text{ or }\left(b=0\text{ and }n=0\text{ and }y\neq d\right)\end{matrix}\right.$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tangohia te \frac{1}{2}by^{2} mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.

$$nA_{s}y-nA_{s}d=-\frac{1}{2}by^{2}$$

Pahekotia ngā kīanga tau katoa e whai ana i te A_{s}.

$$\left(ny-nd\right)A_{s}=-\frac{1}{2}by^{2}$$

He hanga arowhānui tō te whārite.

$$\left(ny-dn\right)A_{s}=-\frac{by^{2}}{2}$$

Whakawehea ngā taha e rua ki te ny-nd.

$$\frac{\left(ny-dn\right)A_{s}}{ny-dn}=-\frac{\frac{by^{2}}{2}}{ny-dn}$$

Mā te whakawehe ki te ny-nd ka wetekia te whakareanga ki te ny-nd.

$$A_{s}=-\frac{\frac{by^{2}}{2}}{ny-dn}$$

Whakawehe -\frac{by^{2}}{2} ki te ny-nd.

$$A_{s}=-\frac{by^{2}}{2n\left(y-d\right)}$$

Whakaoti mō b

$$\left\{\begin{matrix}b=-\frac{2A_{s}n\left(y-d\right)}{y^{2}}\text{, }&y\neq 0\\b\in \mathrm{R}\text{, }&\left(n=0\text{ or }A_{s}=0\text{ or }d=0\right)\text{ and }y=0\end{matrix}\right.$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me tāpiri te nA_{s}d ki ngā taha e rua.

$$\frac{1}{2}by^{2}+nA_{s}y=0+nA_{s}d$$

Ko te tau i tāpiria he kore ka hua koia tonu.

$$\frac{1}{2}by^{2}+nA_{s}y=nA_{s}d$$

Tangohia te nA_{s}y mai i ngā taha e rua.

$$\frac{1}{2}by^{2}=nA_{s}d-nA_{s}y$$

Whakaraupapatia anō ngā kīanga tau.

$$\frac{1}{2}by^{2}=-A_{s}ny+A_{s}dn$$

He hanga arowhānui tō te whārite.

$$\frac{y^{2}}{2}b=A_{s}dn-A_{s}ny$$

Whakawehea ngā taha e rua ki te \frac{1}{2}y^{2}.

$$\frac{2\times \frac{y^{2}}{2}b}{y^{2}}=\frac{2A_{s}n\left(d-y\right)}{y^{2}}$$

Mā te whakawehe ki te \frac{1}{2}y^{2} ka wetekia te whakareanga ki te \frac{1}{2}y^{2}.

$$b=\frac{2A_{s}n\left(d-y\right)}{y^{2}}$$