Question
यदि $\mathrm{A}=\left[\begin{array}{ll}3 & -2 \\ 4 & -2\end{array}\right]$ और $\mathrm{I}=\left[\begin{array}{ll}1 & 0 \\ 0 & 1\end{array}\right]$ तथा $\mathrm{A}^{2}=\mathrm{KA}-2 I$ तो K का मान ज्ञात कीजिए।
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