Tolong bantu jawab ya, tolong banget

Tolong bantu jawab ya, tolong banget

Jawab:

Penjelasan dengan langkah-langkah:

matrik

soal

D + ¹/₃ E^t =

$sf left[begin{array}{ccc}1&0&-1\3&3&6end{array}right] +frac{1}{3}left[begin{array}{ccc}9&-15&0\18&6&-12end{array}right] =$

$sf = left[begin{array}{ccc}1&0&-1\3&3&6end{array}right] +left[begin{array}{ccc}3&-5&0\6&2&-4end{array}right]$

$=left[begin{array}{ccc}1+3&0-5&-1+0\3+6&3+2&6+-4end{array}right]$

$=left[begin{array}{ccc}4&-5&-1\9&5&2end{array}right]$