Whakaoti i te EdP=750-1000/1000*100/125-100

$$E d P = \frac { 750 - 1000 } { 1000 } \times \frac { 100 } { 125 - 100 }$$

Whakaoti mō E

$$E=-\frac{1}{Pd}$$

$$P\neq 0\text{ and }d\neq 0$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tangohia te 1000 i te 750, ka -250.

$$EdP=\frac{-250}{1000}\times \left(\frac{100}{125-100}\right)$$

Whakahekea te hautanga \frac{-250}{1000} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 250.

$$EdP=\left(-\frac{1}{4}\right)\times \left(\frac{100}{125-100}\right)$$

Tangohia te 100 i te 125, ka 25.

$$EdP=\left(-\frac{1}{4}\right)\times \left(\frac{100}{25}\right)$$

Whakawehea te 100 ki te 25, kia riro ko 4.

$$EdP=\left(-\frac{1}{4}\right)\times 4$$

He hanga arowhānui tō te whārite.

$$PdE=-1$$

Whakawehea ngā taha e rua ki te dP.

$$\frac{PdE}{Pd}=-\frac{1}{Pd}$$

Mā te whakawehe ki te dP ka wetekia te whakareanga ki te dP.

$$E=-\frac{1}{Pd}$$

Whakaoti mō P

$$P=-\frac{1}{Ed}$$

$$d\neq 0\text{ and }E\neq 0$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tangohia te 1000 i te 750, ka -250.

$$EdP=\frac{-250}{1000}\times \left(\frac{100}{125-100}\right)$$

Whakahekea te hautanga \frac{-250}{1000} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 250.

$$EdP=\left(-\frac{1}{4}\right)\times \left(\frac{100}{125-100}\right)$$

Tangohia te 100 i te 125, ka 25.

$$EdP=\left(-\frac{1}{4}\right)\times \left(\frac{100}{25}\right)$$

Whakawehea te 100 ki te 25, kia riro ko 4.

$$EdP=\left(-\frac{1}{4}\right)\times 4$$

He hanga arowhānui tō te whārite.

$$EdP=-1$$

Whakawehea ngā taha e rua ki te Ed.

$$\frac{EdP}{Ed}=-\frac{1}{Ed}$$

Mā te whakawehe ki te Ed ka wetekia te whakareanga ki te Ed.

$$P=-\frac{1}{Ed}$$