Absolute Value Sum Alpha Determinant Zero (Jee … | ExamDuo
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Determinants
Medium
Absolute Value Sum Alpha Determinant Zero
Let
A
=
[
1
−
2
α
α
2
−
1
]
and
B
=
[
2
α
−
1
2
4
−
5
]
,
α
∈
C
. Then the absolute value of the sum of all values of
α
for which
det
(
AB
)
=
0
is :
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SELECT ONE OPTION
A
3
B
4
C
2
D
5
Check