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Applying C1 → C1 + 2C3 to the matrix with rows (1, 0, 2) and (2, 3, 4) gives which first column?
A(1, 2)
B(3, 6)
C(5, 8)
D(5, 10)
Answer & Solution
Correct answer: D. (5, 10)
Add twice column 3 to column 1: 1 + 4 = 5 and 2 + 8 = 10.
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