Statement 1: if $a,b,c,d$ are real numbers and $A=\left[abcd\right]and{A}^3=O,then{A}^2=O\dot{}$ Statement 2: For matrix $A=\left[abcd\right]$ we have $A^2=\left(a+d\right)A+\left(ad-bc\right)I=O\dot{}$

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