AP EAPCET 07-Jul-2022 Shift 2 Paper

Section: Mathematics

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Question : 3 of 160

Marks: +1, -0

Let A=[

b2+c2	a2	a2
b2	c2+a2	b2
c2	c2	a2+b2

]. If a=sin‌

π

6

,b=cos‌

π

4

and c=cot‌

π

2

then A is

Symmetric matrix
Skew-Symmetric matrix
Singular matrix
Non-singular matrix

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