If the matrix with rows (2, 4) and (x, 6) is singular, then x is:
If the matrix with rows (2, 4) and (x, 6) is singular, then x is:
- A. 3
- B. -3
- C. 4
- D. 6
Answer: A) 3
Explanation: For a singular matrix, 12 − 4x = 0, which means 4x = 12, so x = 3.
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