AP EAPCET 24-Aug-2021 Shift 1 Paper

Section: Mathematics

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Question : 6 of 160

Marks: +1, -0

If a square matrix A is such that (AT−

1

2

I)(A−

1

2

I) =(AT+

1

2

I)(A+

1

2

I)=I, where I is a unit matrix, then A is

Symmetric matrix
Equal to
3
4
I
Skew - symmetric matrix
Equal to
−3
4
I

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