Matrix B calculation (Jee Mains) | ExamDuo
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Formation, Types & Operations
Medium
Matrix B calculation
Let
A
=
[
2
0
1
1
1
0
1
0
1
]
,
B
=
[
B
1
,
B
2
,
B
3
]
, where
B
1
,
B
2
,
B
3
are column matrices, and
AB
1
=
[
1
0
0
]
,
AB
2
=
[
2
3
0
]
,
AB
3
=
[
3
2
1
]
If
α
=
|
B
|
and
β
is the sum of all the diagonal elements of
B
, then
α
3
+
β
3
is equal to
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