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nikitadnepr [17]
3 years ago
6

From Question 10c, What is DC_{3,1}DC 3,1 ​

Mathematics
1 answer:
-Dominant- [34]3 years ago
6 0

<em>DC</em>₃₁ is the entry of the product <em>DC</em> in row 3, column 1, which you get by computing the dot product of the 3rd row of <em>D</em> and the 1st column of <em>C</em> :

{3, -2} • {1, 4} = 3×1 + (-2)×4 = 3 - 8 = -5

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