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For rows (1, 2, 3), (4, 5, 6), (7, 8, 9), find the minor of the entry 6.
A-3
B-6
C3
D6
Answer & Solution
Correct answer: B. -6
Deleting row 2 and column 3 leaves rows (1,2) and (7,8), whose determinant is 8 - 14 = -6.
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