If {\A}=[\table 1 , 1 , {a}+1 ; 1 , {a}+1 , 1 ; {a}+1 , 1 , 1] is not an invertible matrix, then the sum of all the values of a is

AP EAPCET 08-Jul-2022 Shift 2 Paper

Section: Mathematics

Question : 6 of 160

Marks: +1, -0

If A=[

] is not an invertible matrix, then the sum of all the values of a is

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