Soal matematika wajib bab matriks
Tolong dibantu jawab yah teman teman
Makasih
Jawab yang a b dan c
Makasih
Tolong dibantu jawab yah teman teman
Makasih
Jawab yang a b dan c
Makasih
tifianti
![A = \left[\begin{array}{ccc}2&1&\\2&2&\\\end{array}\right] \\ Det (A) = ad - bc \\ = 2(2) - 1(2) \\ = 4 - 2 \\ = 2](https://tex.z-dn.net/?f=A+%3D+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2%261%26%5C%5C2%262%26%5C%5C%5Cend%7Barray%7D%5Cright%5D+%5C%5C+Det+%28A%29+%3D+ad+-+bc+%5C%5C+%3D+2%282%29+-+1%282%29+%5C%5C+%3D+4+-+2+%5C%5C+%3D+2 "A = \left[\begin{array}{ccc}2&1&\\2&2&\\\end{array}\right] \\ Det (A) = ad - bc \\ = 2(2) - 1(2) \\ = 4 - 2 \\ = 2")
![A^{-1} = \left[\begin{array}{ccc}1&- \frac{1}{2} &\\-1&1&\\\end{array}\right] \\ Det (A^{-1} ) = ad - bc \\ = 1(1) - ( -\frac{1}{2} )(-1) \\ = 1 + \frac{1}{2} \\ = \frac{2}{2} + \frac{1}{2} \\ = \frac{3}{2}](https://tex.z-dn.net/?f=A%5E%7B-1%7D+%3D+++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%26-+%5Cfrac%7B1%7D%7B2%7D+%26%5C%5C-1%261%26%5C%5C%5Cend%7Barray%7D%5Cright%5D+++%5C%5C+Det+%28A%5E%7B-1%7D+%29+%3D+ad+-+bc+%5C%5C+%3D+1%281%29+-+%28+-%5Cfrac%7B1%7D%7B2%7D+%29%28-1%29+%5C%5C+%3D+1+%2B++%5Cfrac%7B1%7D%7B2%7D++%5C%5C+%3D++%5Cfrac%7B2%7D%7B2%7D+%2B++%5Cfrac%7B1%7D%7B2%7D+%5C%5C+%3D+%5Cfrac%7B3%7D%7B2%7D+++ "A^{-1} = \left[\begin{array}{ccc}1&- \frac{1}{2} &\\-1&1&\\\end{array}\right] \\ Det (A^{-1} ) = ad - bc \\ = 1(1) - ( -\frac{1}{2} )(-1) \\ = 1 + \frac{1}{2} \\ = \frac{2}{2} + \frac{1}{2} \\ = \frac{3}{2}")
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Thanks 1
embicillious
yang det(a) . det(a-1) nya kok gk keliatan yah ? dan gk bisa di klik itu knpa yah ??
tifianti
Saya juga nggak tau
embicillious
okedeh makasih yah :)