Whakaoti i te {ccc}{8}&{-1}&{9}{3}&{1}&{8}{11}&{0}&{17}

$$\left( \begin{array} { c c c } { 8 } & { - 1 } & { 9 } \\ { 3 } & { 1 } & { 8 } \\ { 11 } & { 0 } & { 17 } \end{array} \right)$$

Tātai Tau Whakatau

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Ngā Upane e Whakamahi ana i te Ture Sarrus

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

$$det(\left(\begin{matrix}8&-1&9\\3&1&8\\11&0&17\end{matrix}\right))$$

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

$$\left(\begin{matrix}8&-1&9&8&-1\\3&1&8&3&1\\11&0&17&11&0\end{matrix}\right)$$

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

$$8\times 17-8\times 11=48$$

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

$$11\times 9+17\times 3\left(-1\right)=48$$

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

$$48-48$$

Tango 48 mai i 48.

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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).

$$det(\left(\begin{matrix}8&-1&9\\3&1&8\\11&0&17\end{matrix}\right))$$

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.

$$8det(\left(\begin{matrix}1&8\\0&17\end{matrix}\right))-\left(-det(\left(\begin{matrix}3&8\\11&17\end{matrix}\right))\right)+9det(\left(\begin{matrix}3&1\\11&0\end{matrix}\right))$$

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

$$8\times 17-\left(-\left(3\times 17-11\times 8\right)\right)+9\left(-11\right)$$

Whakarūnātia.

$$8\times 17-\left(-\left(-37\right)\right)+9\left(-11\right)$$

Tāpirihia ngā kīanga tau hei kimi i te otinga whakamutunga.

$$0$$

Aromātai

$$\left(\begin{matrix}8&-1&9\\3&1&8\\11&0&17\end{matrix}\right)$$