AP EAMCET · Maths · Matrices
If \(A=\left[\begin{array}{ccc}x & 2 & 1 \\ -2 & y & 0 \\ 2 & 0 & -1\end{array}\right], x\) and \(y\) are non-zero real numbers, trace of \(A=0\) and determinant of \(A=-6\), then the minor of the element 1 of \(A\) is
- A \(-4\)
- B \(4\)
- C \(2\)
- D \(-2\)
Answer & Solution
Correct Answer
(A) \(-4\)
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