Question
यदि $A = \left[ {\begin{array}{*{20}{c}}4&1\\3&2\end{array}} \right]$ और $I = \left[ {\begin{array}{*{20}{c}}1&0\\0&1\end{array}} \right]$, तो ${A^2} - 6A = $
$ = \left[ {\begin{array}{*{20}{c}}{19}&6\\{18}&7\end{array}} \right] - \left[ {\begin{array}{*{20}{c}}{24}&6\\{18}&{12}\end{array}} \right]$$\left[ {\begin{array}{*{20}{c}}{ - 5}&0\\0&{ - 5}\end{array}} \right] = - 5I$.
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