If the rank of the matrix A=[\table 1 , 2 , 1 , -1 ; -1 , 2 , 3 , 5 ; 0 , 1 , k , k] is 2 and k is a real number, then k is a root of the following quadratic equation

AP EAPCET 05-Jul-2022 Shift 2 Paper

Section: Mathematics

Question : 5 of 160

Marks: +1, -0

If the rank of the matrix A=[

] is 2 and k is a real number, then k is a root of the following quadratic equation

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