Whakaoti i te {ccc}{1}&{4}&{6}{-1}&{2}&{4}{-5}&{-4}&{-3}

$$\left( \begin{array} { c c c } { 1 } & { 4 } & { 6 } \\ { - 1 } & { 2 } & { 4 } \\ { - 5 } & { - 4 } & { - 3 } \end{array} \right)$$

Tātai Tau Whakatau

$$2$$

Ngā Upane e Whakamahi ana i te Ture Sarrus

Kimihia te tau whakatau o te poukapa mā te whakamahi i te tikanga hauroki.

$$det(\left(\begin{matrix}1&4&6\\-1&2&4\\-5&-4&-3\end{matrix}\right))$$

Whakaroatia te poukapa taketake mā te tāruarua i ngā tīwae tuatahi e rua hei tīwae tuawhā me te tuarima.

$$\left(\begin{matrix}1&4&6&1&4\\-1&2&4&-1&2\\-5&-4&-3&-5&-4\end{matrix}\right)$$

Tīmata atu i te tāurunga mauī o runga, whakareatia whakararo i ngā hauroki, ka tāpiri i ngā hua ka puta.

$$2\left(-3\right)+4\times 4\left(-5\right)+6\left(-1\right)\left(-4\right)=-62$$

Tīmata atu i te tāurunga mauī o raro, whakareatia whakarunga i ngā hauroki, ka tāpiri i ngā hua ka puta.

$$-5\times 2\times 6-4\times 4-3\left(-1\right)\times 4=-64$$

Tangohia te tapeke o ngā hauroki whakarunga mai i te tapeke o ngā hua hauroki whakararo.

$$-62-\left(-64\right)$$

Tango -64 mai i -62.

$$2$$

Ngā Upane e Whakamahi ana i te Whakaroha mā Ngā Tauriki

Kimihia te tau whakatau o te poukapa mā te whakamahi i te tikanga whakaroha ā-tauriki (te tikanga whakaroha ā-tauwehe tahi rānei).

$$det(\left(\begin{matrix}1&4&6\\-1&2&4\\-5&-4&-3\end{matrix}\right))$$

Hei whakaroha mā ngā tauriki, me whakarea ia huānga o te haupae tuatahi ki tana tauriki, arā, ko te tau whakatau o te poukapa 2\times 2 i hangā mā te muku i te haupae me te tīwae i roto anō taua huānga, kātahi ka whakarea ki te tohu tūnga o taua huānga.

$$det(\left(\begin{matrix}2&4\\-4&-3\end{matrix}\right))-4det(\left(\begin{matrix}-1&4\\-5&-3\end{matrix}\right))+6det(\left(\begin{matrix}-1&2\\-5&-4\end{matrix}\right))$$

Mō te poukapa 2\times 2 \left(\begin{matrix}a&b\\c&d\end{matrix}\right), ko te ad-bc te tau whakatau.

$$2\left(-3\right)-\left(-4\times 4\right)-4\left(-\left(-3\right)-\left(-5\times 4\right)\right)+6\left(-\left(-4\right)-\left(-5\times 2\right)\right)$$

Whakarūnātia.

$$10-4\times 23+6\times 14$$

Tāpirihia ngā kīanga tau hei kimi i te otinga whakamutunga.

$$2$$

Aromātai

$$\left(\begin{matrix}1&4&6\\-1&2&4\\-5&-4&-3\end{matrix}\right)$$