Tolong ya saya tidak paham ... Untuk yg di foto ini......poin ny sama

jawabannya ajaya, kalo mau tau caranya liat aja di internet, banyak kok  keywordnya : "penjumlahan, perkalian, transpose matriks"
1.
a. [tex] \left[\begin{array}{ccc}19&50&25\\30&23&18\\44&46&28\end{array}\right] [/tex]

b. [tex] \left[\begin{array}{ccc}1&6&5\\2&3&8\\4&8&12\end{array}\right] [/tex]

2.
a. [tex] \left[\begin{array}{ccc}30&84&45\\48&39&39\\72&81&60\end{array}\right] [/tex]

b.[tex] \left[\begin{array}{ccc}782&785&360\\586&729&329\\994&1178&535\end{array}\right] [/tex]

3. [tex] \left[\begin{array}{ccc}1&6\\2&5\\3&4\end{array}\right] [/tex]