Mathematics · 2015
JEE Main · 10 April 2015, Shift 1 · Q65
If A = [0, -1; 1, 0], then which one of the following statements is not correct?
If $\displaystyle \mathrm{A}=\left[\begin{array}{cc}0 & -1 \\ 1 & 0\end{array}\right]$, then which one of the following statements is not correct ?
Official answer
(3)
$\displaystyle \mathrm{A}^2+\mathrm{I}=\mathrm{A}\left(\mathrm{~A}^2-\mathrm{I}\right)$
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JEE Main 2015 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.