AP EAPCET 23-Aug-2021 Shift 2 Paper

Section: Mathematics

Question : 8 of 160

Marks: +1, -0

Let X=[

1	−1
1	1

]. Let Y be a 2×2 real matrix satisfying the condition XY=YX. Then the smallest possible value of det(Y) is

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x−z	y−t
x+z	y+t

x+y	−x+y
z+t	−z+t

t	−z
z	t