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Byju's Answer
Standard XII
Mathematics
Cofactor
Find the rank...
Question
Find the rank of the matrix
⎡
⎢
⎣
1
1
1
3
2
−
1
3
4
5
−
1
7
11
⎤
⎥
⎦
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Solution
r
=
[
1
1
1
3
2
−
1
3
4
5
−
1
7
11
]
r
=
[
1
1
1
3
0
−
3
1
−
2
0
−
6
2
−
4
]
=
[
1
1
1
3
0
−
3
1
−
2
0
0
0
0
]
Rank is
2
.
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0
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