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NDA Math Matrices
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© examsnet.com
Question : 32
Total: 69
A square matrix A is called orthogonal if
Where
A
’
is the transpose of A.
[NDA II 2018]
A
=
A
2
A
’
=
A
–
1
A
=
A
–
1
A
=
A
’
Validate
Solution:
If
A
–
1
=
A
T
, then A is orthogonal matrix.
© examsnet.com
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