Whakaoti i te {lll}{1}&{3}&{2}{4}&{1}&{3}{2}&{2}&{0}

$$\left( \begin{array} { l l l } { 1 } & { 3 } & { 2 } \\ { 4 } & { 1 } & { 3 } \\ { 2 } & { 2 } & { 0 } \end{array} \right)$$

Tātai Tau Whakatau

$$24$$

Ngā Upane e Whakamahi ana i te Ture Sarrus

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

$$det(\left(\begin{matrix}1&3&2\\4&1&3\\2&2&0\end{matrix}\right))$$

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

$$\left(\begin{matrix}1&3&2&1&3\\4&1&3&4&1\\2&2&0&2&2\end{matrix}\right)$$

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

$$3\times 3\times 2+2\times 4\times 2=34$$

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

$$2\times 2+2\times 3=10$$

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

$$34-10$$

Tango 10 mai i 34.

$$24$$

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).

$$det(\left(\begin{matrix}1&3&2\\4&1&3\\2&2&0\end{matrix}\right))$$

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.

$$det(\left(\begin{matrix}1&3\\2&0\end{matrix}\right))-3det(\left(\begin{matrix}4&3\\2&0\end{matrix}\right))+2det(\left(\begin{matrix}4&1\\2&2\end{matrix}\right))$$

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

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

Whakarūnātia.

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

Tāpirihia ngā kīanga tau hei kimi i te otinga whakamutunga.

$$24$$

Aromātai

$$\left(\begin{matrix}1&3&2\\4&1&3\\2&2&0\end{matrix}\right)$$