mohon bantuannya ya semua
Matematika
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Pertanyaan
mohon bantuannya ya semua
1 Jawaban
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1. Jawaban sonya03
[3 1] A=[-3 5]
[2 1] [1 7]
jawab; A=[-3 5] [3 1]-1
[1 7] [2 1]
=1/-21-5[1 -1]
[-2 3]
=1/-26 [1 -1]
[-2 3]
=[1/-26 1/26]
[1/13 3/26]
IAI=(1/-26*3/26-1/26*1/13)
=3/-26-2/26
=1/-26