If A=53-1-2 , show that A2-3A-7I2=02 .

If $A = [\begin{matrix} 5 & 3 \\ - 1 & - 2 \end{matrix}]$ , show that $A^{2} - 3 A - 7 I_{2} = 0_{2}$ .

Matching exercise

Match the items on the right to the items on the left.

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