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2 respostas

A = |.6.. 8.|
...... |.7.. 9.|
e
B = |.2.. 3.|
...... |.1.. 4.|

A+B = |.6.. 8.| + |.2.. 3.| = |.8..11.|
.......... |.7.. 9.| ...|.1.. 4.| ...|.8..13.|

A-B =. |.6.. 8.| - |.2.. 3.| = |.4.. 5.|
.......... |.7.. 9.| ..|.1.. 4.| ...|.6...5.|

A*B = |.6.. 8.| * |.2.. 3.| = |(6*2+8*1).... (6*3+8*4)|
..........|.7.. 9.| ..|.1.. 4.| ...|(7*2+9*1).... (7*3+9*4)|

A*B = |(12+8).... (18+32)|
..........|(14+9).... (21+36)|

A*B = |.20... 50.|
..........|.23... 57.|

2006-12-07 23:41:43 · answer #1 · answered by Luiz S 7 · 0 0

Somar você sabe né?
A . B =
|6 8| x |2 3| = |6x2 + 8x1 = 20 6x3 + 8x4 = 50|
|7 9| ; |1 4| |7x2 + 9x1 = 23 7x3 + 9x4 = 57|

2006-12-07 11:25:15 · answer #2 · answered by itsnottheendoftheworld 3 · 0 0

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