JEE MAIN - Mathematics Hindi (2018 - 15th April Morning Slot - No. 4)
माना $$\mathrm{A}$$ एक ऐसा आव्यूह है कि $$\mathrm{A} \cdot\left[\begin{array}{ll}1 & 2 \\ 0 & 3\end{array}\right]$$ एक अदिश आव्यूह है तथा $$|3 \mathrm{~A}|=108$$ है, तो $$\mathrm{A}^{2}$$ बराबर है :
$$\left[\begin{array}{rr}4 & -32 \\ 0 & 36\end{array}\right]$$
$$\left[\begin{array}{rr}36 & 0 \\ -32 & 4\end{array}\right]$$
$$\left[\begin{array}{rr}4 & 0 \\ -32 & 36\end{array}\right]$$
$$\left[\begin{array}{rr}36 & -32 \\ 0 & 4\end{array}\right]$$
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