Offline paper
Mathematics · 2014
JEE Main 2014 · 2014-04-06 Offline · Q66
If A is an 3 × 3 non - singular matrix such that AA^′= A^′ A and B = A^-1 A^′, then BB^′ equals:
If A is an $\displaystyle 3$ × $\displaystyle 3$ non - singular matrix such that $\displaystyle \mathrm{AA}^{\prime}=\mathrm{A}^{\prime} \mathrm{A}$ and $\displaystyle \mathrm{B}=\mathrm{A}^{-1} \mathrm{~A}^{\prime}$, then $\displaystyle \mathrm{BB}^{\prime}$ equals :
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