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AP and TS EAMCET Engineering Model Paper 8
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© examsnet.com
Question : 9
Total: 160
If A =
[
1
2
3
4
]
, B
=
[
1
2
3
4
]
then AB =
[5 3]
[30]
[
−
1
3
2
−
2
6
4
−
3
9
6
]
[
10
−
4
]
Validate
Solution:
AB
=
[
1
2
3
4
]
[
1
2
3
4
]
=
[
1
+
4
+
9
+
16
]
= [30]
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