1) Д1 = -4 - 0 = -4, 3Д1 = -12,
Д2 = -4 - 56 = -60, 2Д2 = -120.
Ответ: 3Д1 + 2Д2 = -12 - 120 = -132.
2) 2 0 1 М21 = 0 1
3 0 4 1 2 = 0 - 1 = -1
5 1 2
М31 = 0 1
0 4 = 0 - 0 = 0.
Ответ: М21*М31 = -1*0 = 0.
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1) Д1 = -4 - 0 = -4, 3Д1 = -12,
Д2 = -4 - 56 = -60, 2Д2 = -120.
Ответ: 3Д1 + 2Д2 = -12 - 120 = -132.
2) 2 0 1 М21 = 0 1
3 0 4 1 2 = 0 - 1 = -1
5 1 2
М31 = 0 1
0 4 = 0 - 0 = 0.
Ответ: М21*М31 = -1*0 = 0.