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Which of the following matrice is invertible? [[1,0,1],[2,-2,1],[3,2,4]] |
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Answer» Solution :LET A=`[[1,0,1],[2,-2,1],[3,2,4]]` `therefore absA=[[1,0,1],[2,-2,1],[3,2,4]]` =`1[[-2,1],[2,4]]+1[[2,-2],[3,2]]` =-8-2+4+6=0 `therefore` This MATRIX A is not INVERTIBLE. |
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