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Byju's Answer
Standard XII
Mathematics
Transpose of a Matrix
If A = [ 1; 2...
Question
If
A
=
⎡
⎢
⎣
1
2
3
⎤
⎥
⎦
then AA' =
A
14
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B
⎡
⎢
⎣
1
3
3
⎤
⎥
⎦
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C
⎡
⎢
⎣
1
2
3
2
4
6
3
6
9
⎤
⎥
⎦
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D
N
o
n
e
o
f
t
h
e
s
e
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Solution
The correct option is
C
⎡
⎢
⎣
1
2
3
2
4
6
3
6
9
⎤
⎥
⎦
A' = [1 2 3] therefore AA' =
=
⎡
⎢
⎣
1
2
3
⎤
⎥
⎦
[
1
2
3
]
=
⎡
⎢
⎣
1
2
3
2
4
6
3
6
9
⎤
⎥
⎦
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0
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