If {\A}=\left[\begin{array}{ccc}x & y & y \ y & x & y \ y & y & x]\end{array} is a matrix such that 5 {\A}^{-1}=\left[\begin{array}{ccc}-3 & 2 & 2 \ 2 & -3 & 2 \ 2 & 2 & -3]\end{array} then {\A}^2-4 {\A}= [TG EAPCET 10 May 2024 Shift 1]

Matrices and Determinants

Section: Mathematics

Question : 13 of 22

Marks: +1, -0

If A=[

] is a matrix such that 5A−1=[

] then A2−4A=

[TG EAPCET 10 May 2024 Shift 1]

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