Let 
and 
Compute 5A – 3B + 4C.
5A-3B+4C 
Conclusion: 5A-3B+4C 
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5. Matrices
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2
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4
5
6
7
8
9
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5
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8
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16
1 A
1 B
1 C
1 D
1 E
2 A
2 B
3 A
3 B
3 C
4
5
16 A
6
7 A
7 B
8
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36
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13 A
13 B
13
13 D
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15
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15
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21
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