Whakaoti i te 160-200*0.7/sqrt{0.7*0.3*200}

$$\frac{ 160-200 \times 0.7 }{ \sqrt{ 0.7 \times 0.3 \times 200 } }$$

Aromātai

$$\frac{10\sqrt{42}}{21}\approx 3.086066999$$

Ngā Upane Otinga

Whakareatia te 200 ki te 0.7, ka 140.

$$\frac{160-140}{\sqrt{0.7\times 0.3\times 200}}$$

Tangohia te 140 i te 160, ka 20.

$$\frac{20}{\sqrt{0.7\times 0.3\times 200}}$$

Whakareatia te 0.7 ki te 0.3, ka 0.21.

$$\frac{20}{\sqrt{0.21\times 200}}$$

Whakareatia te 0.21 ki te 200, ka 42.

$$\frac{20}{\sqrt{42}}$$

Whakangāwaritia te tauraro o \frac{20}{\sqrt{42}} mā te whakarea i te taurunga me te tauraro ki te \sqrt{42}.

$$\frac{20\sqrt{42}}{\left(\sqrt{42}\right)^{2}}$$

Ko te pūrua o \sqrt{42} ko 42.

$$\frac{20\sqrt{42}}{42}$$

Whakawehea te 20\sqrt{42} ki te 42, kia riro ko \frac{10}{21}\sqrt{42}.

$$\frac{10}{21}\sqrt{42}$$