If the adjoint of a 3 × 3 matrix P is [ array lll 1 & 4 & 4 2 & 1 & 7 1 & 1 & 3 array ]…
Mathematics · JEE Advanced · NTA Exams — Matrices and Determinants
If the adjoint of a 3 × 3 matrix P is \[\left[\begin{array}{lll}
1 & 4 & 4 \\
2 & 1 & 7 \\
1 & 1 & 3
\end{array}\right],\] then the possible value(s) of the determinant of P is
(are)
- –2
- –1
- 1
- 2
Answer
(A) –2
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