What is the determinant of the matrix [[1, 2, 0], [0, 3, 4], [2, 0, 1]]?
Correct answer: C. 19
- A. 15
- B. 17
- C. 19
- D. 21
Explanation
Expanding along the first row gives 1(3) minus 2(0 minus 8). Therefore, the determinant is 3 + 16 = 19.
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