Question 323349
[A]={{{(matrix(3,3,-2,5,-1,-1,-2,-3,3,-4,-5))}}}
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det[A]={{{-76}}}
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[A]inv={{{-(1/76)*(matrix(3,3,-2,29,-17,-14,13,-5,10,7,8))}}}
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Using EXCEL MINVERSE function.