If A= [ array cc -1 & 7 2 & 3 array ] , then skew–symmetric part of A is –
Mathematics · JEE Main · NTA Exams — Matrices and Determinants
\(\text { If } A=\left[\begin{array}{cc}
-1 & 7 \\
2 & 3
\end{array}\right]\), then skew–symmetric part of A is –
- \(\left[\begin{array}{cc} -1 & 9 / 2 \\ -9 / 2 & 3 \end{array}\right]\)
- \(\left[\begin{array}{cc} -0 & -5 / 2 \\ 5 / 2 & 0 \end{array}\right]\)
- \(\left[\begin{array}{cc} -1 & -9 / 2 \\ 9 / 2 & 3 \end{array}\right]\)
- \(\left[\begin{array}{cc} 0 & 5 / 2 \\ -5 / 2 & 0 \end{array}\right]\)
Answer
(D) [ array cc 0 & 5 / 2 -5 / 2 & 0 array ]
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