If A= [ array lll 1 & 3 & 5 3 & 5 & 1 5 & 1 & 3 array ] , then adj. A is equal to -

Mathematics · JEE Main · NTA ExamsMatrices and Determinants

\[\text { If } A=\left[\begin{array}{lll} 1 & 3 & 5 \\ 3 & 5 & 1 \\ 5 & 1 & 3 \end{array}\right]\], then adj. A is equal to -
  1. \[\left[\begin{array}{ccc} 14 & -4 & -22 \\ -4 & -22 & 14 \\ -22 & 14 & -4 \end{array}\right]\]
  2. \[\left[\begin{array}{ccc} -14 & 4 & 22 \\ 4 & 22 & -14 \\ 22 & -14 & 4 \end{array}\right]\]
  3. \[\left[\begin{array}{ccc} 14 & 4 & -22 \\ 4 & -22 & -14 \\ -22 & -14 & -4 \end{array}\right]\]
  4. none of these

Answer

(A) [ array ccc 14 & -4 & -22 -4 & -22 & 14 -22 & 14 & -4 array ]

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