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MHTCET 2016 Math Solved Paper
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© examsnet.com
Question : 4
Total: 50
lf A =
[
1
1
0
2
1
5
1
2
1
]
then
a
11
A
11
+
a
12
A
12
+
a
13
A
13
equal to
1
0
- 1
2
Validate
Solution:
(b) Given, A =
[
1
1
0
2
1
5
1
2
1
]
Since, the sum of the product of element other than the corresponding co-factor is zero.
∴
a
11
A
11
+
a
12
A
12
+
a
13
A
13
= 0
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