Tīpoka ki ngā ihirangi matua
Aromātai
Tick mark Image
Tauwehe
Tick mark Image

Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

det(\left(\begin{matrix}1&-4&-1\\0&9&-1\\2&13&0\end{matrix}\right))
Kimihia te tau whakatau o te poukapa mā te whakamahi i te tikanga hauroki.
\left(\begin{matrix}1&-4&-1&1&-4\\0&9&-1&0&9\\2&13&0&2&13\end{matrix}\right)
Whakaroatia te poukapa taketake mā te tāruarua i ngā tīwae tuatahi e rua hei tīwae tuawhā me te tuarima.
-4\left(-1\right)\times 2=8
Tīmata atu i te tāurunga mauī o runga, whakareatia whakararo i ngā hauroki, ka tāpiri i ngā hua ka puta.
2\times 9\left(-1\right)+13\left(-1\right)=-31
Tīmata atu i te tāurunga mauī o raro, whakareatia whakarunga i ngā hauroki, ka tāpiri i ngā hua ka puta.
8-\left(-31\right)
Tangohia te tapeke o ngā hauroki whakarunga mai i te tapeke o ngā hua hauroki whakararo.
39
Tango -31 mai i 8.
det(\left(\begin{matrix}1&-4&-1\\0&9&-1\\2&13&0\end{matrix}\right))
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}9&-1\\13&0\end{matrix}\right))-\left(-4det(\left(\begin{matrix}0&-1\\2&0\end{matrix}\right))\right)-det(\left(\begin{matrix}0&9\\2&13\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.
-13\left(-1\right)-\left(-4\left(-2\left(-1\right)\right)\right)-\left(-2\times 9\right)
Mō te poukapa 2\times 2 \left(\begin{matrix}a&b\\c&d\end{matrix}\right), ko te ad-bc te tau whakatau.
13-\left(-4\times 2\right)-\left(-18\right)
Whakarūnātia.
39
Tāpirihia ngā kīanga tau hei kimi i te otinga whakamutunga.