Tentukan matrik x jika

Tentukan matrik x jika

Jawab:

matriks x

$sf X = left[begin{array}{ccc}8&5\14&15end{array}right] .left[begin{array}{ccc}4&5\2&0end{array}right]^{-1}$

$sf X = left[begin{array}{ccc}8&5\14&15end{array}right] frac{1}{4(0)-2(5)}.left[begin{array}{ccc}0&-5\-2&4end{array}right]$

$sf X = left[begin{array}{ccc}8&5\14&15end{array}right] frac{1}{-10}.left[begin{array}{ccc}0&-5\-2&4end{array}right]$

$sf X = frac{1}{-10}left[begin{array}{ccc}8&5\14&15end{array}right] left[begin{array}{ccc}0&-5\-2&4end{array}right]$

$sf X = frac{1}{-10}left[begin{array}{ccc}-10&-20\-30&-10end{array}right]$

$sf X =left[begin{array}{ccc}1&2\3&1end{array}right]$