Let B=\left[\begin{array}{ccc}1 & 3 & \alpha \ 1 & 2 & 3 \ \alpha & \alpha & 4]\end{array}, \alpha>2 be the adjoint of a matrix A and |A|=2. then \left[\begin{array}{ccc}\alpha & -2 \alpha & \alpha]\end{array} {\B}\left[\begin{array}{c}\alpha \ -2 \alpha \ \alpha]\end{array} is equal to [13-Apr-2023 shift 1]

JEE Mains 13-Apr-2023 Shift 1 Solved Paper

Section: Mathematics

Question : 15 of 90

Marks: +1, -0

Let B=[

],α>2 be the adjoint of a matrix A and |A|=2. then [

−2α

]B[

−2α

] is equal to

[13-Apr-2023 shift 1]

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