Page 45 - Praktikum Media Pembelajaran Flip PDF_Arif Kurniawan Siahaan
P. 45

Jawab :





           -1
         A =            
                   




                    1 −5       7
         Adj A = 7       1    −5
                    1 −2       1



             = 9 + 9 + 9 – 6 – 6 – 6 = 18






                           1    −5     7
         Maka A =      1   7     1    −5
                  -1
                      18
                           1    −2     1
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